- The definition of a right angle is the meeting point between two perpendicular straight lines.
An example of a right angle is a 90º angle.
right-angle definition by Webster's New World
right-angle definition by American Heritage Dictionary
right-angle - Cultural Definition
An angle measuring ninety degrees, formed by the intersection of two perpendicular lines. (Compare acute angle and obtuse angle.)
right-angle - Science Definition
Variant of right-angled