interferometer

2 definitions found

interferometer - Collaborative International Dictionary of English v.0.48 :

  Interferometer \In`ter*fe*rom"e*ter\, n. [See Interfere and
     -meter.] (Physics)
     An instrument for measuring small movements, distances, or
     displacements by means of the interference of two beams of
     light; -- formerly also called also refractometer, but that
     word now has a different meaning.
     [Webster 1913 Suppl. +PJC]

interferometer - WordNet (r) 2.1 (2005) :

  interferometer
      n 1: any measuring instrument that uses interference patterns to
           make accurate measurements of waves