Definition of plumule in English:


Line breaks: plum|ule
Pronunciation: /ˈpluːmjuːl


  • 1 Botany The rudimentary shoot or stem of an embryo plant.
    More example sentences
    • The embryo epidermis, the plumule and the radicle tissues were never probed.
    • Radicles or plumules were excised from the embryos and similarly incubated.
  • 2 Ornithology A bird’s down feather, numbers of which form an insulating layer under the contour feathers.
    More example sentences
    • The second group includes down feathers, or plumules, which are softer and shorter than contour feathers.
    • Geese are larger than ducks so their down plumules are larger and typically geese from colder climates such as central and northern Europe have the largest plumules.


early 18th century: from French plumule or Latin plumula 'small feather', diminutive of pluma 'down'.

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Pronunciation: grəʊˈtɛskəri
grotesque quality or grotesque things collectively