名詞 micropyle:

1. minute opening in the wall of an ovule through which the pollen tube enters

mi.cro.pyle

n.（名詞）
Botany A minute opening in the ovule of a seed plant through which the pollen tube usually enters.
【植物學】 珠孔：種子植物胚珠上的小開口，通?；ǚ酃苡纱诉M入胚珠
Zoology A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter.
【動物學】 卵膜孔：一些動物卵細胞覆蓋膜上的小孔，精子可由此進入

來源：
micro-
micro-
Greek pulô [gate]
希臘語 pulô [門]

【引伸】
mi.cropy.lar
adj.（形容詞）