BusinessAugust 31, 2026
emissivity
ee-mih-SIV-uh-tee
Definition
The measure of a material's ability to emit energy as thermal radiation, specifically in the context of releasing heat into the atmosphere.
Etymology
Derived from the Latin 'emittere' (to send out), the term was formed in the 19th century to describe the physics of heat radiation, combining 'emissive' with the suffix '-ity' to denote a specific property.
In the news
In the article, the technology's effectiveness depends on high thermal emissivity, which allows materials to release trapped heat into the cold sky to provide cooling without electricity.
New Radiative Cooling Technology Market Poised for Strong 26.8%
Read the full article ↗openPR.com