1. : the line along which a force or the resultant of any number of forces may be considered to act
2. : the locus of all points of contact between two interacting teeth of a pair of gears
1. : the line along which a force or the resultant of any number of forces may be considered to act
2. : the locus of all points of contact between two interacting teeth of a pair of gears
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012