noun
: an angle made by a given line with an axis of reference ; specifically : one of the three angles made by a straight line with the three axes of a rectangular coordinate system
noun
: an angle made by a given line with an axis of reference ; specifically : one of the three angles made by a straight line with the three axes of a rectangular coordinate system
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012