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megatherm

American

[meg-uh-thurm] / ˈmɛg əˌθɜrm /

noun

a plant requiring a constant high temperature and abundant moisture for growth.

Other Word Forms

megathermal adjective
megathermic adjective

Etymology

Origin of megatherm

First recorded in 1875–80; mega- + therm

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.