dumbbell curve
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English
[edit]Etymology
[edit]From dumbbell + curve, since the shape loosely resembles a dumbbell.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/5e/DumbbellCurve.png/220px-DumbbellCurve.png)
Noun
[edit]dumbbell curve (plural dumbbell curves)
- (mathematics) Any of a family of closed curves having two lobes; they satisfy the general equation y2 = α2(x4 - x6).