词根词缀：lecith-, lecitho-, -lecithal

【来源及含义】Greek: yolk of an egg; a reference to the ovum

【同源单词】centrolecithal, lecithal, lecithin, lecithovitellin, miolecithal, oligolecithal

词根词缀：vitello-, vitell-

【来源及含义】Latin: yolk, yolk of an egg

【同源单词】vitellarium, vitelligenous, vitellin, vitelline, vitelline membrane, vitellus