plumule
n. 【植】胚芽；【鸟】绒羽
形容词：plumulose
英英释义
Noun
- down feather of young birds; persists in some adult birds
例句
用作名词(n.)
- The drupe fruit tree can't bear fruit in the dysplasia of the plumule.核果类果树在胚芽发育异常时不能坐果。