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单词 spermiogenesis
释义

spermiogenesisn.

/spəːmɪəʊˈdʒɛnɪsɪs/
Etymology: < spermi- comb. form + -o suffix + -genesis comb. form.
Biology.
The development of spermatozoa; spec. the maturation of spermatids into spermatozoa (the last phase of spermatogenesis).
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > fecundation or impregnation > [noun] > development of spermatozoa
spermatogenesis1880
spermiogenesis1920
1920 Biol. Bull. 39 333 The general topography of spermiogenesis has been worked out on Murgantia.
1956 Nature 25 Feb. 387/2 A study of spermiogenesis in the bandicoot..has shown that an acrosome is indeed present.
1980 D. J. Begley et al. Human Reprod. iii. 30/2 Following spermatogenesis and spermiogenesis, which take about 64 days in man, sperm pass through the rete into the epididymis.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
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n.1920
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