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
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MEGACOLON
(noun) an abnormal enlargement of the colon; can be congenital (as in Hirschsprung’s disease) or acquired (as when children refuse to defecate)
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