Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
plumule (plural plumules)
- (botany) The first bud, or gemmule, of a young plant; the bud, or growing point, of the embryo, above the cotyledons.
- (zoology) A down feather.
- (zoology) The aftershaft of a feather.
- (zoology) One of the featherlike scales of certain male butterflies.