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(xué)】 珠孔：種子植物胚珠上的小開(kāi)口，通常花粉管由此進(jìn)入胚珠
Zoology A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter.
【動(dòng)物學(xué)】 卵膜孔：一些動(dòng)物卵細(xì)胞覆蓋膜上的小孔，精子可由此進(jìn)入

來(lái)源：
micro-
micro-
Greek pulô [gate]
希臘語(yǔ) pulô [門(mén)]

【引伸】
mi.cropy.lar
adj.（形容詞）