trochoid (English, noun)
expansion: trochoid (plural trochoids)
Senses:
topics: geometry
mathematics
sciences
glosses: The curve traced by a point on a circle as it rolls along a straight line
topics: biology
malacology
natural-sciences
glosses: An organism or fossil with a trochoid shell (especially one in the gastropod family Trochidae), or the shell itself.
Forms:
form: trochoids
tags: plural