from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A twist drill.
- n. Any other style of cutter, for example a spade drill, that is rotated and fed in a similar manner as a twist drill to of cut a hole in metal, wood or other materials.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a bit used in drilling for oil
Sorry, no etymologies found.