Meaning of microdensitometer

mi•cro•den•si•tom•e•ter

Pronunciation: (mī"krō-den"si-tom'i-tur), [key]
— n. Photog.
  1. a densitometer for measuring the density of minute areas of photographic negatives.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.