Terebra, terebræ, pen. cor. Colu. An auger or wimble wherewith holes are bored. Also au instrumÊt to graue in stones.
Lewis and Short: Latin dictionary
tĕrēbra, ae, f. (neutr. collat. form tĕ-rēbrum, Hier. in Isa. 12, 44, 12 al.) [tero]. I.An instrument for boring, a borer, an auger, gimlet, Cato, R. R. 41, 3; Col. 4, 29, 15 sq.; Plin. 7, 56, 57, 198; 17, 15, 25, 116; 37, 13, 76, 200.—II. As a surgical instrument, a trephine, Cels. 8, 3.—III.A military engine for boring through walls in sieges, Vitr. 10, 13, 7.