absorptiometer

About 0.01 uses per million words.

Meaning

1. noun An instrument that computes the absorption rate by measuring the pressure of the gas; a colorimeter for liquids. .mw-parser-output .defdate{font-size:smaller}
2. noun An instrument used to measure the amount of radiation or light absorbed.

Similar words

absorptometry absorptiometry absorption hygrometer absorption spectroscopy evaporometer spectrometer ceptometer photometer atmometer riometer

Often followed by

is in using with and cell for or