tour de force
Pronunciation: (toor" du fôrs', -fōrs'; Fr. tOOr du fôrs'), [key]
—pl. tours de forcePronunciation: (toorz" du fôrs', -fōrs'; Fr. tOOr du fôrs'). [key]
1. 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: Herman Melville's Moby Dick was a tour de force.
2. 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.
3. a feat requiring unusual strength, skill, or ingenuity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.