D defs.my
Entry 2 senses Webster, 1913

densitometer

· IPA /dˌɛnsətˈɑmətər/
01 n. an instrument for determining optical or photographic density. A variety capable of measuring optical density of a sample at a number of d…
  1. 1.
    an instrument for determining optical or photographic density. A variety capable of measuring optical density of a sample at a number of different wavelengths, is called a spectrophotometer.
  2. 2.
    same as densimeter. See: densimeter