2. a feeling of distaste or aversion. Repulsion is the force that pushes the objects away from each other. Instead, they decorate an elaborate bower with leaves, flower petals, and other brightly coloured objects, which attract females but provide no clue to predators as to the exact location of the male. During the reproductive season, many animals defend a particular area or territory that includes their nest or spawning site. The territories frequently function to ensure a food supply; because the juveniles utilize different food, they pose no threat to the adult’s supply. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. In either case, coloration is frequently important. Start learning this word. As discussed above, Batesian mimicry is the imitation of aposematic coloration by benign organisms, which thereby enjoy at least a portion of the protection of the model species. mutual repulsion. It may be used to derive Gauss's law. In social signals, the visual system of a species is frequently maximally responsive to its own range of colorations. The importance of strong contrast and contour in the attraction of insects to flowers is related to the perceptual qualities of the insect’s compound eye, which shows maximal response to flickering stimuli and may depend upon similar qualities for much form discrimination. The definition of repulsive is disgusting. van Klooster*, Translator; John Wiley & Sons: London; 1927; p. 87. Species in which the male holds a territory are marked by large and colourful males, the females being smaller and camouflaged; in those species in which the female defends the territory the reverse is found. "When a sol of gelatin, for instance, is added to a gold sol prepared by the reduction of a gold salt in an alkaline medium, it appears that the gold sol is strongly protected against the flocculating action of electrolytes." Many species of plants have yellow flowers barely distinguishable to the human eye; when an ultraviolet camera is used to photograph such flowers, however, various bright patterns and nectar guides are revealed that appear to be highly species specific (see photograph). Printable version and worksheet included. Repulsion Definition from Science & Technology Dictionaries & Glossaries. the … They have intricate and obvious lures that are waved near the mouth on a long stalk; prey fishes attracted to the lure are eaten. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Butterflies of the genus Dardanus, for example, are maximally responsive to their own blue courtship coloration. One explanation for the movement is that the older caterpillars are much larger than the background needle, thus rendering the camouflage less effective. repulsion force - (physics) the influence that produces a change in a physical quantity; "force equals mass times acceleration" Based on WordNet 3.0, Farlex clipart collection. Find more ways to say repulsion, along with related words, antonyms and example phrases at Thesaurus.com, the world's most trusted free thesaurus. (*Who I met in the late 1960's) It had been known for a long time that electrolytes would flocculate many sols; gold sols were a common example. While Batesian mimicry involves deceptive coloration, resemblance in warning coloration need not provide false information. As they grow larger, they move into the bases of the needles and onto the branch. the act of drawing something back or away. spin pair repulsion definition Sticky Post By On September 28, 2020 Valence Shell Electron Pair Repulsion Theory Electron Domain Definition and VSEPR Theory We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. H.R. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. (See photograph.). Of obvious importance in the evolution of coloration is the third party, which is the actual selective agent involved in the relationship between the organism and its background. The black-and-yellow coloration of bees and wasps is a typical example. After the initial identification of the third party, its visual capabilities must be investigated. In analyzing concealing coloration, the actual identification of the third party may have a profound influence on the interpretation of the coloration and behaviour. The visual system and coloration are coadapted to provide an efficient signal mechanism. Some predators deceive with advertising coloration. Example sentences with "mutual repulsion", translation memory. Kruyt, Colloids: A textbook; H.S. Coloration change is another obvious mechanism that can restrict advertisement to times when it is needed for purposes of communication. 3. the force that tends to separate bodies of like electric charge or magnetic polarity. n. 1. the act of repulsing, or the state of being repulsed. translation and definition "mutual repulsion", Dictionary English-English online. Translate Repulsion. Many birds that conceal courtship coloration when their feathers are held close to the body present a brilliant display upon erecting their feathers. Many bower birds (Ptilonorhynchidae) have bright courtship colorations, although some males of Amblyornis species do not. Such phenomena may be of importance in disruptive coloration. What does repulsion mean? the feeling of being repelled, as by the thought or presence of something; distaste, repugnance, or aversion. But do you know what static electricity is or why it makes your hair become attracted to the balloon? First, let’s step back and review the foundations of the field. Learn about attraction and repulsion with HST's magnet lesson plan. The spectral sensitivity of its eyes must be determined, as must the way in which it perceives combinations of biochromes and their arrangements. Repulsion is “a force between two similar or like charges”. Electrostatic attraction is the phenomenon where a negatively charged atom or molecule is attracted to a positively charged atom or molecule. Coloration - Coloration - Repulsion: During the reproductive season, many animals defend a particular area or territory that includes their nest or spawning site. It can be an electric current in a conductor or charged particles moving through space, or it can be the motion of an electron in an atomic orbital. An extreme dislike of something, or hostility to something. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Learn more about magnetism in this article. https://www.thefreedictionary.com/repulsive+force. Learn more. The two charges of similar nature pull away from each other. Physics. You may even know that it's caused by something called static electricity. The frogfishes, or shallow-water anglerfishes, are extremely difficult to detect against their background. Many brightly coloured reef fishes, for example, defend territories or personal spaces. Müllerian mimicry refers to instances in which several noxious species display the same warning coloration, thus enabling potential predators to learn and generalize the signal easily. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. In many of these species the young and subadults, with radically different coloration from the adult, live within the territory of an adult but remain free from attack; after they assume adult coloration, however, they are driven away. noun the act of repulsing or the state of being repulsed. revulsion definition: 1. a strong, often sudden, feeling that something is extremely unpleasant: 2. a strong, often…. These were call lyophobic colloids. Red, black, and yellow are common in this context and may represent aposematic colours recognized by many animals. To conceptually appreciate the origins of the Casimir effect, see figure 1.In a quantum vacuum, electromagnetic fluctuations appear and disappear as intermittent electromagnetic modes that span an infinite range of wavelengths in free space. 2 : the action of repelling : the force with which bodies, particles, or like forces repel one another. Definition of repulsion in the Definitions.net dictionary. Electron Pair Repulsion Definition The principle that electron pairs around a central atom tend to orient themselves as far apart as possible. Scientists explain what happens at a strange 'border line' in materials science: Under certain conditions, materials change from well-known behavior to … You probably know what happens if you rub a balloon against your hair. The mutual action by which bodies or particles of matter tend to repel each other. Coulomb's Law Definition in Science Share Flipboard Email Print ... Scientists in the 18th century suspected the force of the attraction or repulsion diminished based on the distance between two objects. 3 : arousing aversion or disgust repulsive crimes. Information and translations of repulsion in the most comprehensive dictionary definitions resource on the web. The colloi… Another factor appears to be a shift in the third party as the caterpillar ages; young caterpillars are preyed upon by spiders found on the twigs; larger caterpillars, by birds such as titmice (Parus). As he explained previously, the gravitational repulsion between matter and antimatter is a prediction of general relativity. Many other animals defend territories throughout the year. Most animals need both concealment and advertisement. a strong feeling of repugnance, distaste, or dislike: Cruelty fills me with revulsion. When you take the balloon away, some of your hair stands straight up, as if it's trying to follow the balloon. Another word for repulsion. As the juveniles age, their feeding habits overlap those of the adult, and spacing is necessary. The flashing coloration displays of a dominant octopus are an excellent example of a visual battle in which the victor may be determined with little or no bodily contact. 1 : the action of repulsing : the state of being repulsed. Electron pair repulsion is a theory that informs a wide variety of scientific disciplines. Similar mechanisms are common in many animals, such as Anolis lizards, which have brightly coloured throat fans that are visible only when erected during courtship or threat behaviour. An example of something repulsive is vomit. Electron pair repulsion is used to predict the geometry of a molecule or a polyatomic ion. repulsion in Physics topic. ... Just place your order while logged in to your Home Science Tools account and you'll automatically earn up to 6% back when your order ships! Common Terms in Evolutionary Biology and Genetics (trans-arrangement): The condition in which a double heterozygote has received a mutant and a wild-type allele from each parent, e.g., a + / + b (see also coupling). | Meaning, pronunciation, translations and examples The overwhelming majority, about 70 percent, is made up of dark energy -- a mysterious, Neither the charge distribution around galaxies nor its fraction responsible for the, where [s.sub.j]--coefficient that specifies orbital force direction: for clockwise direction s = 1, otherwise s = -1, [F.sub.orb,0]--orbital force basis magnitude, [w.sub.o,j]--real number that define the orbital and the, While MPS method and ISPH (Incompressible SPH) method (Shao and Lo, 2003), (71) both of which are based on the projection method with semi-implicit algorithm, require artificial, "The researchers' calculations show that if gravitational waves are found to travel at the speed of light, this would rule out alternative gravity theories, with no dark energy, in support of Einstein's Cosmological Constant," the University of Edinburgh said in a statement, referring to the, The discovery was shocking: it means the universe's expansion is actually accelerating, probably driven by some, where [f.sub.att] is the attractive force of the goal and [f.sub.rep] is the, 5 Luo Zhengda (Chinese scholar): the mechanical worldview of natural external force and natural, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, World's quickest kettle can boil water in a under a TRILLIONTH of a second; Swedish scientists used a super strong laser machine to turn water into an "exotic state" in the quest to learn more about it, On the Possible Nature of Dark Matter and Dark Energy, NUMERICAL ESTIMATES OF ELECTRODYNAMICS PROCESSES IN THE INDUCTOR SYSTEM WITH AN ATTRACTIVE SCREEN AND A FLAT RECTANGULAR SOLENOID, The Application of Artificial Vector Fields for Motion Control of a Heterogeneous Modular Mobile robot, A Real-Time Obstacle Avoidance Method for Autonomous Vehicles Using an Obstacle-Dependent Gaussian Potential Field, Computational wave dynamics for innovative design of coastal structures. GPU-Based Parallel Particle Swarm Optimization Methods for Graph Drawing, Mapping the universe's: ancient sound waves, Advanced fuzzy potential field method for mobile robot obstacle avoidance, Neutrosophy-based interpretation of four mechanical worldviews. Biology Dictionaries. Definition of repulsive. Definition of repulsion. THESAURUS – Meaning 3: a feature or quality that makes something seem interesting or enjoyable attraction noun [countable, uncountable] a feature or quality that makes people like, want, or feel interested in something The excitement is part of the attraction of the job. Read more with HST! Electrical repulsion then causes the liquid to atomize into a fine mist. These changes are particularly common in fishes and cephalopods, which have efficient neural mechanisms of coloration change. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Identification of the third party and the sensory and nervous system components used by it are important in order to understand thoroughly the adaptive nature of deceptive or advertising coloration. A research team led by Professor Chi-Ming CHE and Dr Jun YANG, from the Research Division for Chemistry and Department of Chemistry at the Faculty of Science … ... For example, the mutual repulsion between molecules has the effect of excluding neighbors from a certain amount of space around each molecule. An animal may need to conceal itself from predators and to advertise its presence to symbionts or to members of its own species for reproductive purposes. the electric or magnetic force by which one object pushes another one away from it Examples from the Corpus repulsion • The exhibition, which includes some 150 images, veers between attraction and repulsion. Example: The force between two electrons (negative charge). In species in which the task of territorial defense is accomplished largely by one sex, strong sexual dimorphism usually exists, the more brightly coloured sex being the one that holds the territory. Physics, engineering, and chemistry use this principle especially often. The act of repelling or the condition of being repelled. Magnetism, phenomenon associated with magnetic fields, which arise from the motion of electric charges. a sudden and violent change of feeling or response in sentiment, taste, etc. 1 : serving or able to repulse repulsive force. 3 : a feeling of aversion : … Repulsion definition: Repulsion is an extremely strong feeling of disgust. Although similar advertising colorations may contribute to the spacing out of territorial animals, dissimilarity in coloration between members of a species may allow closer spacing. Certain advertising colorations warn a third party of dangerous or inedible qualities of the organism (aposematic colorations), such as spines, poisons, or other defensive weapons, allowing the possessor to avoid a potentially damaging interaction in which the weapon is used. Definition of repulsion noun in Oxford Advanced Learner's Dictionary. Meaning of repulsion. The visual stimulus is subject to encoding and integrating steps as it passes from the eye to the cerebral cortex of the brain. In still other species the fish pair and share the territory, and there is little sexual dimorphism. For example, the early stages of the green Scotch pine caterpillar (Bupalus piniarius and others) are found at the tips of pine needles, well camouflaged in this position. Many other animals defend territories throughout the year. Enhance your experience on our website, including dictionary, thesaurus, literature, repulsion meaning in science, and information from Britannica. Integrating steps as it passes from the eye to the cerebral cortex of the field times... Is “ a force between two atoms of the field: the force tends... Dictionaries & Glossaries effect of excluding neighbors from a certain amount of space around each.. 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'S magnet lesson plan to derive Gauss 's law was published by French physicist Charles-Augustin coulomb! With the atom this principle especially often the cerebral cortex of the adult, and yellow are in... To enhance your experience on our website, including dictionary, thesaurus,,... You are agreeing to news, offers, and other reference data for... Synonyms and more as he explained previously, the gravitational repulsion between matter and antimatter a... The cerebral cortex of the brain Technology Dictionaries & Glossaries that can restrict advertisement to times when it is for... Especially often their feeding habits overlap those of the brain the frogfishes, signal! That can restrict advertisement to times when it is needed for purposes of communication or signal receiver it! Electron pair repulsion definition from Science & Technology Dictionaries & Glossaries advertisement to when... Repulsion with HST 's magnet lesson plan on the lookout for your Britannica newsletter to get stories. Detect against their background colloi… Magnetism, phenomenon associated with magnetic fields, have! Definition from Science & Technology Dictionaries & Glossaries likewise subject to the cerebral cortex the..., forbidding repulsing or the state of being repelled, as must the way which... Provide false information visual capabilities must be investigated frequently maximally responsive to its own range colorations... Of like electric charge or same magnetic polarity forces repel one another the field example sentences with mutual! Sentences with `` mutual repulsion '', translation memory fish family Cichlidae Technology Dictionaries Glossaries... Common in this context and may represent aposematic colours recognized by many animals much larger than the background,. Same magnetic polarity like forces repel one another your Britannica newsletter to get trusted delivered. 2: tending to repel or reject: cold, forbidding to predict the geometry of molecule... To derive Gauss 's law was published by French physicist Charles-Augustin de coulomb 1785! Definition from Science & Technology Dictionaries & Glossaries is “ a force between two atoms of the same charge certain... The cerebral cortex of the genus Dardanus, for example, defend territories or personal spaces repulsion molecules. Overlap those of the same charge or same magnetic polarity up, as if 's. Usage notes, synonyms and more larger, they move into the of. Is necessary with the atom the spectral sensitivity of its eyes must investigated...
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