INTERFEROMETER

[in.ter.fer.om.e.ter] n [ISV] (1897): an instrumen t that utilizes the interference of waves (as of light) for precise determinations (as of distance or wavelength) -- in.ter.fer.o.met.ric adj -- in.ter.fer.o.met.ri.cal.ly adv -- in.ter.fer.om.e.try n