noun
Etymology: Middle English riht angle
: the angle bounded by two radii that intercept a quarter of a circle : an angle formed by two lines perpendicular to each other — see angle illustration
•
- at right angles
noun
Etymology: Middle English riht angle
: the angle bounded by two radii that intercept a quarter of a circle : an angle formed by two lines perpendicular to each other — see angle illustration
•
- at right angles
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012