yolk
/jəʊk/noun
1- the yellow internal part of a bird's egg, which is surrounded by the white, is rich in protein and fat, and nourishes the developing embryo蛋黄。
1.1
- mass noun Zoology the corresponding part in the ovum or larva of all egg-laying vertebrates and many invertebrates【动】卵黄。
派生词
yolked
adjective also in combinationyolkless
adjectiveyolky
adjective词源
Old English geol(o)ca， from geolu 'yellow'.