1. (n.) A pawl, click, or detent, for holding or propelling a ratchet wheel, or ratch, etc.
2. (n.) A mechanism composed of a ratchet wheel, or ratch, and pawl. See Ratchet wheel, below, and 2d Ratch.
Thesaurus Entries
cog, comb, crag, fang, harrow, jag, peak, pecten, projection, rake, sawtooth, snag, snaggle, spire, sprocket, spur, steeple, tooth
