antimère


antimère

antimère nom masculin Chacune des parties semblables d'une plante (fleurs) ou d'un animal (échinodermes, cnidaires) se répétant par rotation autour d'un axe commun (symétrie radiaire).

antimère [ɑ̃timɛʀ] n. m.
ÉTYM. 1874, → cit.; de 1. anti-, et -mère.
Biol. Élément d'une symétrie rayonnante.
0 Les rayonnés enfin se différencient des trois autres types principaux par la conformation de leurs corps, qui sont munis de quatre ou d'un plus grand nombre de prolongements rayonnés (antimères).
Ch. Letourneau, trad. Haeckel, De la création des êtres organisés, p. 48 (1874).

Encyclopédie Universelle. 2012.

Regardez d'autres dictionnaires:

  • Antimere — An ti*mere, n. [. anti + mere.] (Biol.) One of the two halves of bilaterally symmetrical animals; one of any opposite symmetrical or homotypic parts in animals and plants. [1913 Webster] || …   The Collaborative International Dictionary of English

  • antimere — [an′ti mir΄] n. [ ANTI + MERE] Zool. either of the corresponding parts opposite each other on a symmetrical animal antimeric [an΄timer′ik] adj …   English World dictionary

  • antimere — the corresponding element on the opposite side of a bilaterally symmetrical organism, as fishes are …   Dictionary of ichthyology

  • antimere — n. [Gr. anti, against; meros, part] Left and right halves of a bilaterally symmetrical object, or a homologous part repeated in segments arranged around an axis, as in radially symmetrical animals …   Dictionary of invertebrate zoology

  • antimere — antimeric /an teuh mer ik/, adj. antimerism /an tim euh riz euhm/, n. /an teuh mear /, n. Zool. 1. a segment or division of the body having a corresponding segment or division that is opposite to it relative to the longitudinal axis of the body.… …   Universalium

  • antimere — 1. A segment of an animal body formed by planes cutting the axis of the body at right angles. 2. One of the symmetrical parts of a bilateral organism. 3. The right or left half of the body. [anti + G. meros, a part] * * * an·ti·mere …   Medical dictionary

  • antimere — n. (Zoology) section of the body which has a corresponding and opposite part (in bilaterally or radially symmetrical animals) …   English contemporary dictionary

  • antimere — an·ti·mere …   English syllables

  • antimere — /ˈæntimɪə/ (say anteemear) noun → actinomere. –antimeric /æntiˈmɛrɪk/ (say antee merik), adjective –antimerism /ænˈtɪmərɪzəm/ (say an timuhrizuhm), noun …   Australian English dictionary

  • antimere — …   Useful english dictionary


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