端たん黄おう卵らんたんおうらんMeanings1nountelolecithal eggA biological term for an egg where the yolk is concentrated at one end, as in fish, amphibians, reptiles, and birds. Compare with 等黄卵 (isolecithal egg).See also: 等黄卵魚ぎょ類るいや鳥ちょう類るいの卵たまごは端たん黄おう卵らんに
