“macromere”的英文意思_释义_用法

单词

macromere

释义

macromere Embryology.|ˈmækrəʊmɪə(r)|
[f. Gr. µακρό-ς long + µέρος part.]
The larger of the two masses into which the vitellus of the developing ovum of Lamellibranchiata divides: cf. micromere. Hence macroˈmeral, macroˈmeric adjs., of or pertaining to the macromere.
1877Huxley Anat. Inv. Anim. viii. 483 Those [blastomeres] which proceed from the macromere long remain larger and more granular than those which proceed from the micromere.Ibid. 484 The macromeral hemisphere next undergoes invagination.Ibid. 499 The macromeric part of the vitellus.1895J. A. Thomson Outlines Zool. (ed. 2) 417 The third cleavage..gives rise to four larger cells (or macromeres),..and to four smaller cells (or micromeres).

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