A floating widget inside a beer can, which (unlike earlier fixed versions) prevents the contents from overflowing if opened when warm.

plural of smoothifier

Challenging experiences are the most educational and so, ultimately, beneficial.

Any of several small North Atlantic coastal sharks of the genus Mustelus.

Wire, used for fencing, that is not barbed wire.

Sympterichthys unipennis, an extinct species of fish.

(of an animal) Having a brain which is naturally smooth in appearance. / (of a human) Lissencephalic; having a brain which lacks convolutions due to malformation.

(rare) streamlined

(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