名詞 chalaza:

1. basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined
2. one of two spiral bands of tissue connecting the egg yolk to the enclosing membrane at either end of the shell

cha.la.za

n.（名詞）
【復數(shù)】 cha.la.zae[-zô] 或 cha.la.zas
Biology One of two spiral bands of tissue in an egg that connect the yolk to the lining membrane at either end of the shell.
【生物學】 卵黃系帶：雞蛋內(nèi)將蛋黃和蛋殼任一端的內(nèi)膜連接的兩個螺旋的帶狀組織之一
Botany The region of an ovule that is opposite the micropyle, where the integuments and nucellus are joined.
【植物學】 合點：珠孔對面的胚珠內(nèi)結(jié)合珠被和珠心的一個區(qū)域

來源：
Greek khalaza [hard lump, hailstone]
希臘語 khalaza [硬塊，雹塊]

【引伸】
chala.zal
adj.（形容詞）