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A two-sided roof with a double slope on each side, the lower slope having the steeper pitch.
nSometimes shortened to: gambrel
1. (Architecture) chiefly Brit a hipped roof having a small gable at both ends
2. (Architecture) chiefly US and Canadian a roof having two slopes on both sides, the lower slopes being steeper than the upper. Compare mansard1
a gable roof, each side of which has a shallower slope above a steeper one.