1. A wheel with cogs.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• catwheel,
• cogweel,
• xogwheel,
• vogwheel,
• fogwheel,
• dogwheel,
• coghwheel,
• cogheel,
• cogwhele,
• cogwheeel,
• cog wheel,
• coghwheels,
• cogheels,
• cogwheels,
• coggwheels,
• cog wheels,
• cogg-wheel,
• ragwheel,
• bbigwheel,
• bigwheeel

• coggle,
• cochell,
• cartwheel.

The adjective form of the word "cogwheel" is "cogged".

The plural of the "cogwheel" can be the "cogwheels".

The singular of the "cogwheel" can be the "cogwheel".