Pronunciation: (toor" du fôrs', -fōrs' Fr. t&oomacrr du fôrs'), [key]
— pl. tours de force
an exceptional achievement by an artist, author, or the like, that is unlikely to be equaled by that person or anyone else; stroke of genius:Moby Dick was a tour de force. Herman Melville's
a particularly adroit maneuver or technique in handling a difficult situation: The way the president got his bill through the Senate was a tour de force.
a feat requiring unusual strength, skill, or ingenuity.