Meaning of phase microscope

phase' mi"croscope

Pronunciation: (fāz'kon'trast). [key]
  1. a microscope that utilizes the phase differences of light rays transmitted by different portions of an object to create an image in which the details of the object are distinct despite their near-uniformity of refractive index. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.