[ˈtrəʊkɔɪd], (Adjective)

Definitions:
- denoting a joint in which one element rotates on its own axis (e.g. the atlas vertebra)

- 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)

- having or denoting a form of mollusc shell which is conical with a flat base, like a top shell


Phrases:

Origin:
early 18th century: from Greek trokhoeidēs ‘wheel-like’, from trokhos ‘wheel’

[ˈtrəʊkɔɪd], (Noun)

Definitions:
- a trochoid curve

- a trochoid joint


Phrases:

Origin:
early 18th century: from Greek trokhoeidēs ‘wheel-like’, from trokhos ‘wheel’