( n. )
An instrument of the ancients for finding two mean proportionals between two given lines, required in solving the problem of the duplication of the cube.
( n. )
An instrument of the ancients for finding two mean proportionals between two given lines, required in solving the problem of the duplication of the cube.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012