Bible Dictionaries
Hypotrochoid

Webster's Dictionary

(n.) A curve, traced by a point in the radius, or radius produced, of a circle which rolls upon the concave side of a fixed circle. See Hypocycloid, Epicycloid, and Trochoid.

Bibliography Information
Webster, Noah. Entry for 'Hypotrochoid'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​h/hypotrochoid.html. 1828.