(architecture) A bead worked on or fixed to the angle of any architectural work, especially for protecting an angle of a wall.

(architecture) An enriched angle bead, often having a capital or base, or both.

(carpentry) A brace across an interior angle of a wooden frame, forming the hypotenuse and securing the two side pieces together.

plural of obtuse angle

plural of acute angle

(mathematics, geometry) An angle measuring less than ninety degrees.

(mathematics, geometry) An angle that is greater than 90 degrees and less than 180 degrees.

plural of reflex angle

(geometry) An angle greater than 180 degrees but less than 360 degrees.

plural of angle of view