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1. A down feather.
2. The young shoot of a plant embryo above the cotyledons, consisting of the epicotyl and often of immature leaves.
[Latin plūmula, diminutive of plūma, feather.]
plu′mu·lose′ (plo͞om′yə-lōs′) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Botany) the embryonic shoot of seed-bearing plants
2. (Zoology) a down feather of young birds that persists in some adults
[C18: from Late Latin plūmula a little feather]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. the bud of the ascending axis of a plant while still in the embryo.
2. a down feather.
plu′mu•lar (-yə lər) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
The developing bud of a plant embryo, situated just below the cotyledons and often containing immature leaves. See more at germination.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.