(mathematics, statistics) The mathematical process of fitting a smooth curve to dispersed data points.

(idiomatic, uncountable) Used to describe an activity that is not encountering any problems.

plural of smooth operator

(poker) To call a raise, as opposed to folding or reraising, often to disguise the strength of one's hand.

plural of smooth snake

Extremely smooth (in any sense).

Extremely smooth (in any sense).

(transitive) To make smooth. / (intransitive) To become smooth. / (transitive, figuratively) To remove irregularities or imperfections from.

(transitive, idiomatic) To render smooth, to remove roughness from

A manifold which is infinitely differentiable (C ᪲).