macromere

macromere
A blastomere of large size, as in amphibians. [macro- + G. meros, part]

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mac·ro·mere 'mak-rō-.mi(ə)r n any of the large blastomeres that occur in the hemisphere of a telolecithal egg containing the vegetal pole and that are formed by unequal segmentation compare MICROMERE

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mac·ro·mere (makґro-mēr″) [macro- + -mere] one of the large blastomeres formed by unequal cleavage of a zygote as a result of asymmetric positioning of the mitotic spindle. Cf. micromere.

Medical dictionary. 2011.

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  • macromère — ● macromère nom masculin Cellule de grande taille, se formant au début du développement embryonnaire des animaux. Monomère de masse molaire élevée. macromère [makʀomɛʀ; makʀɔmɛʀ] n. m. ÉTYM. 1905; autres sens, 1873; de macro , et (blasto)mère,… …   Encyclopédie Universelle

  • macromere — [mak′rō mir΄] n. [ MACRO + MERE] one of the large cells produced by unequal cell division during the early embryologic development of many animals, as mollusks …   English World dictionary

  • macromere — noun Date: 1877 a large blastomere see blastula illustration …   New Collegiate Dictionary

  • macromere — n. [Gr. makros, large; meros, part] A distinctly large cell resulting from unequal cleavages during early embryology …   Dictionary of invertebrate zoology

  • macromere — /mak reuh mear /, n. Embryol. one of the large blastomeres that form toward the vegetal pole in embryos undergoing unequal cleavage. [1875 80; MACRO + MERE] * * * …   Universalium

  • macromere — noun A large blastomere …   Wiktionary

  • macromere — mac·ro·mere …   English syllables

  • macromere — mac•ro•mere [[t]ˈmæk rəˌmɪər[/t]] n. dvl one of the blastomeres that form toward the vegetal pole in embryos undergoing unequal cleavage …   From formal English to slang

  • macromere — ˈmakrōˌmi(ə)r noun ( s) Etymology: macr + mere : any of the large blastomeres of the vegetative hemisphere of an embryo that result from the unequal segmentation of a telolecithal egg opposed to micromere; see blastula illustration …   Useful english dictionary

  • Cleavage (embryo) — In embryology, cleavage is the division of cells in the early embryo. The zygotes of many species undergo rapid cell cycles with no significant growth, producing a cluster of cells the same size as the original zygote. The different cells derived …   Wikipedia

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