microphotometer

[ mahy-kroh-foh-tom-i-ter ]

noun

, Optics.

1. a photometer adapted for measuring the intensity of light emitted, transmitted, or reflected by minute objects.

Other Words From

• mi·cro·pho·to·met·ric [mahy-kroh-foh-t, uh, -, me, -trik], adjective
• micro·photo·metri·cal·ly adverb
• micro·pho·tome·try noun

Word History and Origins

Origin of microphotometer¹

First recorded in 1895–1900; micro- + photometer

Example Sentences

With a microphotometer, a special camera and an able staff, he found in the Cloud more than 500 new variable stars and enough star clusters in its neighborhood to make its diameter seem 20,000 light years, double the previous estimate.

From Time Magazine Archive