rotary motion

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the act of rotating as if on an axis
- the rotation of the dancer kept time with the music
• Syn:
rotation
• Derivationally related forms:
rotate (for: rotation)
• Hypernyms:
motion, movement, move, motility
• Hyponyms:
circumvolution, feather, feathering, gyration, whirling,
pivot, pronation, spin, twirl, twist, twisting,
twisting, spiral, supination, turn, wind,
winding, turnout