1
- Anatomy denoting a joint in which one element rotates on its own axis (e.g. the atlas vertebra)【剖】（关节）车轴状的, 滑车状的。
2
- Geometry denoting a curve traced by a point on a radius of a circle rotating along a straight line or another circle (a cycloid, epicycloid, or hypocycloid)【几何】（次）摆线的。
3
- Zoology having or denoting a form of mollusc shell which is conical with a flat base, like a top shell【动】（螺壳）圆锥形的。
派生词
trochoidal
adjective词源
early 18th cent.: from Greek trokhoeidēs 'wheel-like', from trokhos 'wheel'.