absorptiometer

[ ab-sawrp-shee-om-i-ter, -zawrp- ]

noun

1. a photoelectric instrument for measuring the concentration of a substance, as a transparent solution, by its absorption of monochromatic light.

Other Words From

• ab·sorp·ti·o·met·ric [ab-sawrp-shee-, uh, -, me, -trik, -zawrp-], adjective

Word History and Origins

Origin of absorptiometer¹

First recorded in 1875–80; absorpti(on) + -o- + -meter

Example Sentences

The proportioning of the sugar accurately dates, as it were, from but yesterday, and the measurement of the absorbing power of wine for carbonic acid has but just entered into practice, thanks to Mr. Salleron's absorptiometer.

From Project Gutenberg