n. Something behaving in similar, jerky, manner as a cogwheel, e.g. cogwheel respiration as a side effect of hyperbaric medicine
the GNU version of the Collaborative International Dictionary of English
n. A wheel with cogs or teeth; a gear wheel. See Illust. of gearing.
The Century Dictionary and Cyclopedia
n. A wheel having teeth or cogs, used in transmitting motion by engaging the cogs of another similar wheel or of a rack; a geared wheel, or a gear.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
Word Usage
"The mighty horizontal cogwheel had thick wooden spikes which in turn fitted into the crevices of another vertical cog, and these wheels put four heavy beams in motion."