珠しゅ孔こう

noun

micropyle

Botanical term for the small opening in the ovule of a seed plant through which the pollen tube enters.

• 珠しゅ孔こうは胚はい珠しゅの先せん端たんにある小ちいさな穴あなです。

  The micropyle is a small hole at the tip of the ovule.