齿轮

Traditional form:

齒輪

Pinyin (reading):

chǐlún

Definitions:

• (machine) gear
• pinion (gear wheel)

Characters:

• 齿 - teeth; gears, cogs; age
• 轮 - wheel; to turn, to revolve; to recur

Traditional characters:

• 齒 - teeth; gears, cogs; age
• 輪 - wheel; to turn, to revolve; to recur