同義語 卵黄嚢

Japanese WordNet / Princeton WordNet

1. 卵黄嚢noun

   鳥、爬虫類、有袋動物とある魚類の卵黄を包む脊椎組織; 発育中の胎児に栄養をいきわたらせる

   membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo

   心臓が機能するまでに哺乳動物の胎児の循環器官として機能する膜構造

   membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional

   Synonym(s): umbilical vesicle, vesicula umbilicus, vitelline sac, yolk sac, yolk sac

   Hypernym(s): sac, sac