opsiometer
English
editEtymology
editAncient Greek; compare French opsiomètre.
Noun
editopsiometer (plural opsiometers)
- (historical) An old type of optometer[from 19th century].
References
edit- “opsiometer”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.