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Definition of Plumule
1. Noun. Down feather of young birds; persists in some adult birds.
Definition of Plumule
1. n. The first bud, or gemmule, of a young plant; the bud, or growing point, of the embryo, above the cotyledons. See Illust. of Radicle.
Definition of Plumule
1. Noun. (botany) The first bud, or gemmule, of a young plant; the bud, or growing point, of the embryo, above the cotyledons. ¹
2. Noun. (zoology) A down feather. ¹
3. Noun. (zoology) The aftershaft of a feather. ¹
4. Noun. (zoology) One of the featherlike scales of certain male butterflies. ¹
¹ Source: wiktionary.com
Definition of Plumule
1. the primary bud of a plant embryo [n -S] : PLUMULAR [adj]
Medical Definition of Plumule
1. The portion of an embryo that gives rise to the shoot system (as distinct from the root system) of a plant. Compare: radicle. (09 Oct 1997)