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割球 (かっきゅう) Japanese meaning | Kotomora

割かっ球きゅう

か

っ

きゅ

う

Meanings

1

noun

blastomere

A cell formed by cleavage of a fertilized egg; used in embryology and developmental biology.

受じゅ精せい卵らんが分ぶん裂れつして割かっ球きゅうが形けい成せいされる。
The fertilized egg divides and blastomeres are formed.

Kanji

割proportion, comparatively, divide
球ball, sphere

Similar words

胚はい盤ばん胞ほう
胚盤胞 (blastocyst) is a later stage consisting of many cells, while 割球 refers to individual cells during early cleavage.

Etymology

Compound of 割 (division) and 球 (sphere), referring to the spherical cells produced by cleavage. The reading かっきゅう follows regular on'yomi.