usually ready·made[French ready-made, from English]: a commonplace artifact (as a comb or ice tongs) selected and shown as a work of art
First Known Use of READY-MADE
Everyday object selected and designated as art. The name was coined by Marcel Duchamp, whose first ready-mades included a snow shovel that he picked up on a snowy day in New York, and a wheel mounted on a stool (1913). They represented a protest against the excessive importance attached to works of art. Duchamp's anti-aesthetic gestures made him one of the leading Dadaists of his day, and his ready-made concept, though widely regarded for decades as an insult to art, was adapted by such later artists as Robert Rauschenberg, Andy Warhol, and Jasper Johns.