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.

Origin of absorptiometer

First recorded in 1875–80; absorpti(on) + -o- + -meter
Related formsab·sorp·ti·o·met·ric [ab-sawrp-shee-uh-me-trik, -zawrp-] /æbˌsɔrp ʃi əˈmɛ trɪk, -ˌzɔrp-/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018