What is to increase (the amount of gold or silver) by the arts of alchemy. [Obs.] Multiplying gear (Mach.), gear for increasing speed. -- Multiplying lens. (Opt.) See under Lens called?

multiply — To increase (the amount of gold or silver) by the arts of alchemy. [Obs.] Multiplying gear (Mach.), gear for increasing speed. -- Multiplying lens. (Opt.) See under Lens. (Webster's 1913.)

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