旋钮

Traditional form:

旋鈕

Pinyin (reading):

xuánniǔ

Definitions:

• knob (e.g. handle or radio button)

Characters:

• 旋 - to revolve, to orbit, to return
• 钮 - button, knob; surname

Traditional characters:

• 旋 - to revolve, to orbit, to return
• 鈕 - button, knob; surname