PHOTOCHROMISM

Noun

photochromism (countable and uncountable, plural photochromisms)

The reversible transformation of the optical properties of a material when exposed to electromagnetic radiation, especially the reversible darkening of a plastic lens when exposed to sunlight.

Source: Wiktionary



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Word of the Day

27 February 2025

SUMMIT

(verb) reach the summit (of a mountain); “They breasted the mountain”; “Many mountaineers go up Mt. Everest but not all summit”


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Coffee Trivia

There are more than 50 countries that export coffee. They are near the equator, where the climate is conducive to producing coffee beans.

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