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单词 micropyle
释义
mi·cro·pyle (mīkrə-pīl)
n.
1. Botany A minute opening in the ovule of a seed plant through which the pollen tube usually enters.
2. Zoology A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter.

[MICRO- + Greek pulē, gate.]

micro·pylar adj.
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更新时间:2025/3/22 19:45:32