(mathematics) Any of a family of closed curves having two lobes; they satisfy the general equation y² = α²(x⁴ - x⁶).

A weight training implement consisting of a short bar with weight counterpoised on each end. / (derogatory) A stupid person.

plural of dumbbell

superlative form of dumb: most dumb

comparative form of dumb: more dumb

(transitive) To dumbfound.

Someone who or that which dumbfounds.

plural of dumbfounder

plural of dumbarse

(rare) Alternative spelling of dumbbell