[ ploom-yool ]
/ ˈplum yul /


Botany. the bud of the ascending axis of a plant while still in the embryo.
Ornithology. a down feather.

Origin of plumule

1720–30; < New Latin, Latin plūmula. See plume, -ule

Related forms

plu·mu·lar [ploom-yuh-ler] /ˈplum yə lər/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for plumule

British Dictionary definitions for plumule


/ (ˈpluːmjuːl) /


the embryonic shoot of seed-bearing plants
a down feather of young birds that persists in some adults

Word Origin for plumule

C18: from Late Latin plūmula a little feather
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for plumule


[ plōōmyōōl ]

The young shoot of a plant embryo, situated above the cotyledons and consisting of the epicotyl and often of immature leaves. See more at germination.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.