Meaning

noun material made by bonding together sheets of two different metals

adjective formed of two different metals or alloys; especially in sheets bonded together

originEtymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Italic *dwi- Latin bi-bor. English bi- Ancient Greek μέτᾰλλον (métăllon)der. Latin metallum Old French metalbor. Middle English metal English metal English bimetal From bi- + metal.

Etymology from Wiktionary, CC BY-SA 3.0