an adventitious root that supports the plant, as the aerial roots of the mangrove tree or of corn.
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Origin of prop root
First recorded in 1900–05
Also called brace root.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for prop root
a root that grows from and supports the stem above the ground in plants such as mangroves
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 prop root
[ prŏp ]
An aerial root that arises from a stem or trunk, penetrates the soil, and helps support the stem, as in mangroves.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.