Dictionary.com
definitions

densitometer

[den-si-tom-i-ter]
noun
  1. Photography. an instrument for measuring the density of negatives.
  2. a densimeter.

Origin of densitometer

First recorded in 1900–05; densit(y) + -o- + -meter
Related formsden·si·to·met·ric [den-si-tuh-me-trik] /ˌdɛn sɪ təˈmɛ trɪk/, adjectiveden·si·tom·e·try, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for densitometer

densitometer

noun
  1. an instrument for measuring the optical density of a material by directing a beam of light onto the specimen and measuring its transmission or reflection
Derived Formsdensitometric (ˌdɛnsɪtəˈmɛtrɪk), adjectivedensitometry, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
densitometer in Medicine

densitometer

[dĕn′sĭ-tŏm′ĭ-tər]
n.
  1. An apparatus for measuring the optical density of a material, such as a photographic negative.
  2. densimeter
Related formsden′si•tom′e•try (-ĭ-trē) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.