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The meaning of EXAPTATION is a trait, feature, or structure of an organism or taxonomic group that takes on a function when none previously existed or that differs from its original function which had been derived by evolution; also : the condition or circumstance of possessing one or more such traits, features, or structures.
Exaptation or co-option is a shift in the function of a trait during evolution. For example, a trait can evolve because it served one particular function, but subsequently it may come to serve another. Exaptations are common in both anatomy and behaviour. Bird feathers are a classic example.
Define exaptation. exaptation synonyms, exaptation pronunciation, exaptation translation, English dictionary definition of exaptation. n. Biology The utilization of a structure or feature for a function other than that for which it was developed through natural selection. ex·ap′ted adj....
The term “exaptation” was coined to describe acquisition, or “cooption” of a new function with a positive effect on fitness.
ex·ap·tive [eg-, zap, -tiv, ig-, ek-, sap, -], adjective. Exaptation definition: a process in which a feature acquires a function that was not acquired through natural selection.. See examples of EXAPTATION used in a sentence.
exaptation is a borrowing from Latin, combined with an English element. Etymons: Latin ex, aptus, ‑ation suffix.
