the time rate of change of angular velocity of a rotating body.
To find the angular acceleration A, draw kt, bt respectively parallel to and at right angles to the link KB.
Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 8 Various
Similarly, if a body is rotated round a vertical axis, we perceive only angular acceleration and not angular velocity.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 Various
the rate of change of angular velocity
(astronautics) the acceleration of a space vehicle around an axis
The rate of change of angular velocity with respect to time. Angular acceleration is measured in revolutions per minute squared or in radians per second squared.
- Angular cheilitis
angular cheilitis angular cheilitis n. Inflammation and radiating fissures at the corners of the mouth, secondary to predisposing factors such as overclosure of the jaws in denture wearers, nutritional deficiencies, atopic dermatitis, or Candida albicans infection. Also called commissural cheilitis, perlèche.
- Angular artery
angular artery angular artery an·gu·lar artery (āng’gyə-lər) n. An artery that is the terminal branch of the facial artery, distributed through the muscles and skin of the side of the nose, having anastomoses with the lateral nasal and dorsal arteries of the nose and the palpebral arteries from the ophthalmic artery. See artery of angular […]
- Angular deformation
angular deformation angular deformation A change in the shape of a body, generally due to sheer stress, such that a straight line connecting two points within the body before the deformation is not parallel with a straight line connecting them after the deformation.
- Angular diameter
the angle that the apparent diameter of a celestial object subtends at the eye of the observer. Historical Examples Its angular diameter at mean distance is 31′ 5″, or, say, just over ½°. The Story of the Solar System George F. Chambers The constant, 220, is the reciprocal of the quotient of the angular diameter […]