primary root
the first root produced by a germinating seed, developing from the radicle of the embryo.
Origin of primary root
1Words Nearby primary root
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use primary root in a sentence
Forcible conquest and adverse occupation is nearly always the primary root of title.
Is Ulster Right? | AnonymousThese are exactly like the primary root from which they spring; there is no difference in structure or in machinery of growth.
Rustic Sounds | Francis DarwinThe single root of the commoner biennials is the primary root, or tap-root, which begins to thicken in the seedling.
The Elements of Botany | Asa GrayThese are all simple, that is, there is but one primary root.
Outlines of Lessons in Botany, Part I; From Seed to Leaf | Jane H. Newell
Scientific definitions for primary root
The first root of a plant, originating in the embryo. In gymnosperms, eudicotyledons, and magnoliids, the primary root develops into the taproot. In monocotyledons, the primary root disintegrates as the lateral roots develop into a system of fibrous roots.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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