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Definition of radiometer

radiometer

/ˌreɪdiˈɑːmɪtər/
ra · di · om · e · ter
Adverb:radiometrically
•
Plural:radiometers
•
Adjective:radiometric
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radiometer Lexical Profile

radiometer Game Scores & Validity

• noun

1

A scientific instrument used to detect and measure the intensity of radiant energy, such as electromagnetic radiation or infrared light.

Example

"The physics teacher placed the Crookes radiometer in the sunlight to demonstrate how the black and white vanes spin when exposed to radiant energy."

2

A device mounted on a satellite or aircraft that measures electromagnetic radiation from the Earth or its atmosphere to gather meteorological or environmental data.

Example

"The weather satellite was equipped with an advanced infrared radiometer to precisely monitor global sea surface temperatures."

Synonyms
View all synonyms for radiometer

• Rhymes for radiometer

• Nearby Words

radiologist
radiology
radioman
radiometer
radiotherapy
radiothon
radish

Word Origin & Etymology

Coined in the 1870s by English chemist Sir William Crookes, combining Latin 'radius' (ray) and Greek 'metron' (measure).

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Radiometer. In Wordmom Dictionary. Retrieved Nov 15, 2026, from https://wordmom.com/dictionary/radiometer
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