Aposematism
noun ·Rare ·Advanced level
Definitions
- 1 An adaptation, especially a form of coloration, that warns off potential predators.
"First, the selection of "red" as a releaser in courtship and social chasing indicates a secondarily evolved use of aposematic coloring. It is assumed here that aposematism in this and other red-and-black heliconiids, and their correlated development of Müllerian mimicry, occurred in evolution before the development of red as a social releaser."
Example
More examples"First, the selection of "red" as a releaser in courtship and social chasing indicates a secondarily evolved use of aposematic coloring. It is assumed here that aposematism in this and other red-and-black heliconiids, and their correlated development of Müllerian mimicry, occurred in evolution before the development of red as a social releaser."
Etymology
apo- (prefix meaning ‘away from’) (from Ancient Greek ᾰ̓πό (ăpó, “from, away from”)) + semat(ic) (“acting as a sign of danger”) (from Ancient Greek σῆμα (sêma, “mark, sign, token”), from Proto-Indo-European *dʰyeh₂- (“to notice”) + -μᾰ (-mă, suffix forming neuter nouns denoting the object or result of an action, or a particular instance of an action)) + -ism. The word aposematic was coined by British evolutionary biologist Edward Bagnall Poulton (1856–1943) in The Colours of Animals (1890).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.