etalon

The definition of an etalon is an instrument that is used to measure the wavelength of light.

(noun)

An example of etalon is the equipment used to stabilize the wavelength of a laser.

See etalon in Webster's New World College Dictionary

noun

an optical instrument with two plane parallel reflecting surfaces, used for the precise measurement of distance or the wavelength of light

Learn more about etalon

etalon computer definition

etalon in a sentence

link/cite print suggestion box

More from YD