megatherm

noun

mega·​therm

ˈmegəˌthərm

: a plant that requires great heat combined with very abundant moisture for its successful growth compare mesotherm, microtherm

megathermal

¦⸗⸗¦thərməl

adjective

or megathermic

-mik

Word History

Etymology

International Scientific Vocabulary mega- + -therm

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now