'Plumule' definitions:

Definition of 'plumule'

(from WordNet)
noun
Down feather of young birds; persists in some adult birds

Definition of 'Plumule'

From: GCIDE
  • Plumula \Plu"mu*la\, n.; pl. L. Plumule, E.-las. [L. See Plumule.]
  • 1. (Bot.) A plumule. [1913 Webster]
  • 2. (Zool.) A down feather. [1913 Webster]

Definition of 'Plumule'

From: GCIDE
  • Plumule \Plu"mule\, n. [L. plumula, dim. of pluma a feather; cf. F. plumule.]
  • 1. (Bot.) The first bud, or gemmule, of a young plant; the bud, or growing point, of the embryo, above the cotyledons. See Illust. of Radicle. --Gray. [1913 Webster]
  • 2. (Zool.) (a) A down feather. (b) The aftershaft of a feather. See Illust. under Feather. (c) One of the featherlike scales of certain male butterflies. [1913 Webster]