释义
adj.
(of a young bird or other animal)hatched or born in an advanced state and able to feed itself almost immediately. Often contrasted with ALTRICAL.
（雏鸟等）早成性的，早熟的。亦称
(of a particular species)having such young
（某物种）有早成性后代的。
n.
a precocial bird
早成鸟。
词源
"late 19th cent.: from modern Latin