noun Etymology: irregular from o- + -id Date: 1904 an egg cell after meiosis

New Collegiate Dictionary. 2001.

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  • ootid — ootid. См. оотид. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • ootid — [ō′ō tid, ō′ətid] n. [ OO + t + ID] a large, haploid cell produced at the second meiotic division, that quickly becomes an egg cell …   English World dictionary

  • ootid — The nearly mature ovum after the first meiotic division has been completed and the second initiated; in most higher mammals, the second meiotic division is not completed unless fertilization occurs. [G. ootidion, a diminutive egg. See id (2)] * * …   Medical dictionary

  • ootid — n. [Gr. oion, egg; eidos, form] One of the four meiotic products arising in oogenesis …   Dictionary of invertebrate zoology

  • ootid — /oh euh tid/, n. Cell Biol. the cell that results from the meiotic divisions of an oocyte and matures into an ovum. [1905 10; OO + (SPERMA)TID] * * * …   Universalium

  • ootid — noun The haploid cell, produced by meiotic division of a secondary oocyte, that is a nearly mature ovum …   Wiktionary

  • ootid — n. cell which becomes an ovum just before fertilization (Biology) …   English contemporary dictionary

  • ootid — oo·tid …   English syllables

  • ootid — o•o•tid [[t]ˈoʊ ə tɪd[/t]] n. dvl an ovarian egg cell that results from oocyte division and matures into an ovum under certain conditions • Etymology: 1905–10 …   From formal English to slang

  • ootid — noun mature ovum after penetration by sperm but before the formation of a zygote • Hypernyms: ↑ovum, ↑egg cell …   Useful english dictionary

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