Share this entry

Share this page

etalon

Syllabification: e·ta·lon
Pronunciation: /ˈādlˌän
 
/

Definition of etalon in English:

noun

Physics
A device consisting of two reflecting plates for producing interfering light beams.
Example sentences
  • The change in resonance frequency of the etalon measures the change in optical-path length.
  • We specialize in very large aperture etalons with diameters up to 150 mm.
  • Our products range from simple condenser lenses to precision etalons.

Origin

early 20th century: from French étalon, literally 'standard of measurement'.

Definition of etalon in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day emulous
Pronunciation: ˈɛmjʊləs
adjective
seeking to emulate someone or something