noun Date: 1886 a character of an organism or taxonomic group that takes on a function when none previously existed or that differs from its existing function which has been derived by evolution; also the possession of one or more such characters

New Collegiate Dictionary. 2001.

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  • préadaptation — ● préadaptation nom féminin Ensemble de traits anatomiques et physiologiques d une population animale ou végétale qui lui seraient avantageux dans un milieu différent de celui où vit actuellement l espèce et qui rendent possible la conquête, par… …   Encyclopédie Universelle

  • preadaptation — [prē΄ad əp tā′shən] n. the possession of certain characteristics by an organism which make it more adaptable to a future environmental change than similar organisms are preadaptive adj …   English World dictionary

  • Preadaptation — In evolutionary biology, preadaptation describes a situation where an organism uses a preexisting anatomical structure inherited from an ancestor for a potentially unrelated purpose. One example of preadaptation is dinosaurs having used feathers… …   Wikipedia

  • preadaptation — preadaptacija statusas T sritis Kūno kultūra ir sportas apibrėžtis Dėl mutacijos organizmo ar organo savybė prisitaikyti prie būsimų aplinkos pokyčių arba prie būsimų organų funkcijų. kilmė lot. prae – anksčiau + adaptacija atitikmenys: angl.… …   Sporto terminų žodynas

  • preadaptation — preadaptacija statusas T sritis augalininkystė apibrėžtis Atsiradimas augalo požymių, kurie neturi pirminės prisitaikymo reikšmės, bet pasikeitusiomis gyvenimo sąlygomis gali būti naudingi. atitikmenys: angl. preadaptation rus. преадаптация …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • preadaptation — n. [L. pre, before; adaptatus, fitted] The possession of the necessary genotypic or phenotypic properties that permit a shift into a new niche or habitat …   Dictionary of invertebrate zoology

  • preadaptation — /pree ad euhp tay sheuhn/, n. Biol. a structure or property that developed in an ancestral stock and was useful in a descendant in a changed environment. [1885 90; PRE + ADAPTATION] * * * …   Universalium

  • preadaptation — noun An adaptation that evolved in an ancestral population, in which it served a different function …   Wiktionary

  • preadaptation — pre·adap·ta·tion (pre″a dap taґshən) the acquisition in an ancestral group of certain characters that usually are adaptive to the ancestral mode of life yet at the same time enable a shift in mode of life; for example, lungs in fish… …   Medical dictionary

  • preadaptation — pre·adaptation …   English syllables

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