Interferometer definition

ĭntər-fə-rŏmĭ-tər
Frequency:
Any of several optical, acoustic, or radio-frequency instruments that use interference phenomena between a reference wave and an experimental wave or between two parts of an experimental wave to determine wavelengths and wave velocities, measure very small distances and thicknesses, and calculate indices of refraction.
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An instrument for measuring wavelengths of light and very small distances and thicknesses, for determining indices of refraction, and for analyzing small parts of a spectrum by means of the interference phenomena of light.
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Any of several optical, acoustic, or radio frequency instruments that use interference phenomena between a reference wave and an experimental wave or between two parts of an experimental wave to determine wavelengths and wave velocities, measure very small distances and thicknesses, and calculate indices of refraction.
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See etalon.
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(physics) Any of several instruments that use the interference of waves to determine wavelengths and wave velocities, determine refractive indices measure small distances, temperature changes, stresses, and many other useful measurements.
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Other Word Forms

Noun

Singular:
interferometer
Plural:
interferometers

Origin of interferometer

  • From interfer(e) +‎ -ometer.

    From Wiktionary