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