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Word of the Day Wednesday, June 10, 2026

emissivity

/ɪˈmɪsɪvɪti/ noun · British & US
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What does emissivity mean?

noun

The measure of a material's ability to emit radiation, typically measured as a ratio of the emitted radiation to the absorbed radiation. It is a property of a material that determines how efficiently it radiates energy.

Example

"The emissivity of the new material was found to be significantly higher than the old one, resulting in a more efficient heat transfer."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for emissivity

Antonyms of emissivity

Rhymes with emissivity

Etymologically related