RASP

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.

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.

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.

The raspberry. [Obs.] "Set sorrel amongst rasps, and the rasps will be smaller." Bacon. Rasp palm (Bot.), a Brazilian palm tree (Iriartea exorhiza) which has strong aërial roots like a screw pine. The roots have a hard, rough surface, and are used by the natives for graters and rasps, whence the common name.