from the GNU version of the Collaborative International Dictionary of English
- n. Same as Spur gear, above.
from The Century Dictionary and Cyclopedia
- n. The common form of cog-wheel, in. which the cogs are radial and peripheral, and made to engage corresponding cogs on another wheel. Compare cut under pinion.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. gear wheels that mesh in the same plane
Sorry, no etymologies found.