Plumule
Pronunciation : Plu"mule
Part of Speech : n.
Etymology : [L. plumula, dim. of pluma a feather; cf. F. plumule.]
Definition : 1. (Bot.)
Defn: 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.
2. (Zo?l.) (a) A down feather. (b) The aftershaft of a feather. See Illust. under Feather. (c) One of the featherlike scales of certain male butterflies.
Source : Webster's Unabridged Dictionary, 1913