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单词 ovum
释义 ovum
\ˈōvəm\ noun
(plural ova \-və\)
Etymology: New Latin, from Latin, egg — more at egg
1. : a female gamete : macrogamete, egg cell:
 a. : a mature egg that has undergone reduction, is ready for fertilization, and takes the form of a relatively large inactive gamete providing a comparatively great amount of reserve material and contributing most of the cytoplasm of the zygote — see oosphere; compare centrolecithal, homolecithal, megalecithal, microlecithal, ovary, telolecithal
 b. : an immature ovum (as an oocyte or oogonium)
 c. : a fertilized ovum (as a zygote or embryo) — not used technically
2. : an architectural ornament shaped like an egg
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更新时间:2024/11/10 11:02:37