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miosis

英 [maɪ'əʊsɪs]

n. （生殖细胞的）成熟分裂；减数分裂；[医] 瞳孔缩小

英文词源

miosis (n.): 1819, from Greek myein "to shut (the eyes)" + -osis. Greek myein is perhaps originally "to close the lips," from PIE *meue- "to be silent" (see mute (adj.)). Related: Miotic.