PERM Meaning of PERM in English /perrm/ , Informal.n.1. permanent (def. 4). v.t.2. to give (the hair) a permanent. v.i.3. to apply a permanent to the hair. [ 1925-30; by shortening ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012