Bible Dictionaries
Hodograph

Webster's Dictionary

(n.) A curve described by the moving extremity of a line the other end of which is fixed, this line being constantly parallel to the direction of motion of, and having its length constantly proportional to the velocity of, a point moving in any path; -used in investigations respecting central forces.

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