in·ter·fer·om·e·ter /ˌɪntə(r)fəˈrɑmətɚ/
  干涉計
  in·ter·fer·om·e·ter /ˌɪntə(r)fəˈrɑmətɚ, ˌfɪrˈɑm-/ 名詞
  干擾儀,干涉儀
  interferometer
  干涉儀
  In·ter·fe·rom·e·ter n.  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.
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  interferometer
       n : any measuring instrument that uses interference patterns to
           make accurate measurements of waves