diaphanometer
English
Etymology
From Ancient Greek διαφανής (diaphanḗs, “transparent”) + -meter. Compare diaphanous.
Noun
diaphanometer (plural diaphanometers)
- (archaic) An instrument for measuring the transparency of a fluid, such as a Secchi disk.
References
- “diaphanometer”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.