端たん黄おう卵らん

noun

telolecithal egg

A 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分ぶん類るいされる。

  The eggs of fish and birds are classified as telolecithal eggs.