Illustration of plumule
- 1 hypocotyl
- 2 plumule
- 3 cotyledons
plumule
noun
plu·mule ˈplü-(ˌ)myül 
1
: the primary bud of a plant embryo usually situated at the apex of the hypocotyl and consisting of leaves and an epicotyl
2
: a down feather
Word History
Etymology
New Latin plumula, from Latin, diminutive of pluma small soft feather — more at fleece
First Known Use
1727, in the meaning defined at sense 1