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orthotropism

American  
[awr-tho-truh-piz-uhm] / ɔrˈθɒ trəˌpɪz əm /

noun

  1. Botany. orthotropic tendency or growth.

Etymology

Origin of orthotropism

First recorded in 1880–85; ortho- + -tropism

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.