(v. t.) To rub or file with a rasp; to rub or grate with a rough file; as, to rasp wood to make it smooth; to rasp bones to powder.
(v. t.) Hence, figuratively: To grate harshly upon; to offend by coarse or rough treatment or language; as, some sounds rasp the ear; his insults rasped my temper.
(v.) A coarse file, on which the cutting prominences are distinct points raised by the oblique stroke of a sharp punch, instead of lines raised by a chisel, as on the true file.