Short for permanent wave (“hairstyle”).

To give hair a perm, using heat, chemicals etc.

(informal) A permutation. / A combination of outcomes (not a permutation) that a gambler bets on in the football pools.

A historical region of northeastern Russia, corresponding to the Kama basin, a left tributary of the Volga. / A krai of Russia, near the Ural Mountains.

simple past tense and past participle of perm

That has been given a permanent wave

plural of perm

Third-person singular simple present indicative form of perm

present participle of perm

Tending to permeate.