densitometer

American  

[den-si-tom-i-ter] / ˌdɛn sɪˈtɒm ɪ tər /

noun

1. Photography. an instrument for measuring the density of negatives.

2. a densimeter.

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densitometer British  

/ ˌdɛnsɪtəˈmɛtrɪk, ˌdɛnsɪˈtɒmɪtə /

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

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Other Word Forms

• densitometric adjective
• densitometry noun

Etymology

Origin of densitometer

First recorded in 1900–05; densit(y) + -o- + -meter

Example Sentences

The astronomer on the panel knew all about measuring the density of an extremely small photographic image with a densitometer because he did it all the time in his studies of the stars.

From The Report on Unidentified Flying Objects by Ruppelt, Edward J.

In measuring the brilliance of the lights, the photo analysts had used an instrument called a densitometer.

From The Report on Unidentified Flying Objects by Ruppelt, Edward J.