plumule
Americannoun
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Botany. the bud of the ascending axis of a plant while still in the embryo.
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Ornithology. a down feather.
noun
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the embryonic shoot of seed-bearing plants
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a down feather of young birds that persists in some adults
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The young shoot of a plant embryo, situated above the cotyledons and consisting of the epicotyl and often of immature leaves.
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See more at germination
Other Word Forms
Etymology
Origin of plumule
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Grain of Indian Corn in germination, the ascending sprout is the first leaf of the plumule, enclosing the younger leaves within, at its base the primary root has broken through.
From The Elements of Botany For Beginners and For Schools by Asa Gray
Same, older, with plumule developed into internode and pair of leaves.
From The Elements of Botany For Beginners and For Schools by Asa Gray
In germination the first leaf of the plumule develops only as a sort of sheath, protecting the tender parts within; the second and the third form the first foliage.
From The Elements of Botany For Beginners and For Schools by Asa Gray
It would appear therefore that the cotyledon answers to a minute leaf rolled up, and that a chink through which the plumule grows out is a part of the inrolled edges.
From The Elements of Botany For Beginners and For Schools by Asa Gray
Germinating Onion, more advanced, the chink at base of cotyledon opening for the protrusion of the plumule, consisting of a thread-shaped leaf.
From The Elements of Botany For Beginners and For Schools by Asa Gray
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
