Rasp — Defs

01 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.

imp. & p. p. Rasped; p. pr. & vb. n. Rasping

1.
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.
2.
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.

02 n. A coarse file, on which the cutting prominences are distinct points raised by the oblique stroke of a sharp punch, instead of lines raised …

1.
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.
2.
The raspberry.[Obs.]

Phrases & compounds

Rasp palm — a Brazilian palm tree (Iriartea exorhiza) which has strong aerial 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.