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单词 polocyte
释义

polocyten.

Brit. /ˈpəʊlə(ʊ)sʌɪt/, U.S. /ˈpoʊləˌsaɪt/
Origin: Formed within English, by compounding. Etymons: pole n.2, -o- connective, -cyte comb. form.
Etymology: < pole n.2 + -o- connective + -cyte comb. form. Compare earlier polar body n. at polar adj. and n. Compounds.
Cell Biology.
= polar body n. at polar adj. and n. Compounds.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > ovum or ootid > polar body
polar body1882
polocyte1915
1915 C. W. Prentiss Lab. Man. & Text-bk. Embryol. i. 28 There are formed one large ripe ovum or oöcyte and three rudimentary or abortive ova known as polar bodies or polocytes.
1931 J. E. Frazer Man. Embryol. i. 6 Among the lower animals it seems to be usual for maturation not to be completed (i.e., the second polocyte not to be cast off) before conjugation with the male cell is effected.
1969 F. D. Allan Essent. Human Embryol. (ed. 2) i. 14 Polocytes consist of a nuclear mass and a delicate cytoplasmic sheath and have no known function in addition to the passive role they play in meiosis.
1998 Animal Biol. 7 71 The two polocytes differ in shape and size, density and distribution of the microvilli, type of movements made.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.1915
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更新时间:2024/12/22 21:33:38