diaphanometer

[ dahy-af-uh-nom-i-ter ]
/ daɪˌæf əˈnɒm ɪ tər /

noun

an instrument for measuring the transparency of a solid, liquid, or gas.

Origin of diaphanometer

First recorded in 1780–90; diaphan(ous) + -o- + -meter

OTHER WORDS FROM diaphanometer

di·aph·a·no·met·ric [dahy-af-uh-nuh-me-trik] /daɪˌæf ə nəˈmɛ trɪk/, adjective di·aph·a·nom·e·try, noun