ETALON

Etymology

Noun

etalon (plural etalons)

An optical device containing parallel mirrors, used as a narrow band filter, often in laser design.

Synonyms

• Fabry-Pérot interferometer

Anagrams

• late on, lean-to, tolane

Source: Wiktionary



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Word of the Day

15 March 2025

TRUNCATION

(noun) the replacement of an edge or solid angle (as in cutting a gemstone) by a plane (especially by a plane that is equally inclined to the adjacent faces)


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Coffee Trivia

Coffee has initially been a food – chewed, not sipped. Early African tribes consume coffee by grinding the berries together, adding some animal fat, and rolling the treats into tiny edible energy balls.

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