noun
Usage: usually capitalized A
: a plane curve generated by a point moving away from or toward a fixed point at a constant rate while the radius vector from the fixed point rotates at a constant rate
noun
Usage: usually capitalized A
: a plane curve generated by a point moving away from or toward a fixed point at a constant rate while the radius vector from the fixed point rotates at a constant rate
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012