The rudimentary shoot or stem of an embryo plant.
sprout, shoot, flowerlet, floretView synonyms
- ‘The embryo epidermis, the plumule and the radicle tissues were never probed.’
- ‘Radicles or plumules were excised from the embryos and similarly incubated.’
A bird's down feather, numbers of which form an insulating layer under the contour feathers.
plume, quillView synonyms
- ‘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.