pyrgeometer

noun

pyr·​ge·​om·​e·​ter

ˌpī(ə)rjēˈämətə(r),

ˌpi(-

: an instrument for determining the radiation from the earth's surface into space

the equipment of a modern observatory, including … pyrgeometers

—Science

Word History

Etymology

International Scientific Vocabulary pyr- + ge- + -meter

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