Dictionary.com

primary growth

noun Botany.

growth in vascular plants, especially an increase in length, that results from cell division and differentiation of an apical meristem.

QUIZZES

THE OCTOBER WORD OF THE DAY QUIZ IS HERE TO HAUNT YOU

Search your capacious memory for the meaning of October’s words!
Question 1 of 9
Which Word of the Day from this month means, “an irrational dislike; loathing”?
zinger
élan
scunner
TAKE THE QUIZ TO FIND OUT

Words nearby primary growth

primary effect, primary election, primary fissure of cerebellum, primary gain, primary group, primary growth, primary hemochromatosis, primary hemorrhage, primary herpetic stomatitis, primary hyperoxaluria and oxalosis, primary industry
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Scientific definitions for primary growth

primary growth

Growth in vascular plants resulting from the production of primary tissues by an apical meristem. The plant body grows lengthwise chiefly by the enlargement of cells produced by the apical meristem (rather than by cell division). Because they lack secondary tissues, most monocots and herbaceous plants grow solely by primary growth until they reach maturity, when growth stops. Compare secondary growth.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.