回かい旋せん

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

rotation; revolution; convolution

Refers to the act of turning around an axis or center, or a single complete turn. Can be used in physical, geometric, or figurative contexts. Often used in technical or formal descriptions.

• 地ち球きゅうの回かい旋せん運うん動どうについて学まなんだ。

  I learned about the Earth's rotational motion.

• 肩かたを大おおきく回かい旋せんさせるストレッチを毎まい朝あさ行おこなっている。

  I do a stretch every morning that involves rotating my shoulders widely.