opsiometer

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