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Definition of: interferometer
(in′tər·fə·rom′ə·tər) noun Physics
An instrument which utilizes the interference of light rays for the comparison of wavelengths and the measurement of very small distances: largely developed by A. A. Michelson, of Chicago. [<INTERFER(E) + -(O)METER]
—in′ter·fe·rom′e·try noun
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