the angle formed by two radii of a circle that are drawn to the extremities of an arc equal to one half of the circle; an angle of 180°
Word origin
[1595–1605]This word is first recorded in the period 1595–1605. Other words that entered Englishat around the same time include: domain, option, toss, vernacular, zero
Examples of 'straight angle' in a sentence
straight angle
The large island is sculpturally shaped, with straight angles on the utility side and a gentle curve on the seating side.