mesolabe

== English == === Etymology === From Latin mesolabium, from Ancient Greek μεσόλαβος (mesólabos). === Noun === mesolabe (plural mesolabes) (historical) An ancient instrument for finding two mean proportionals between two given lines, required in solving the problem of the duplication of the cube. === References === “mesolabe”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.