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 […]
- Angular displacement
the amount of rotation of a point, line, or body in a specified direction about an axis. Historical Examples There may be an angular displacement—for example, in greenstick fracture. Manual of Surgery Volume Second: Extremities–Head–Neck. Sixth Edition. Alexander Miles It is common to find an angular displacement of both bones to the radial or to […]
a republic in SW Africa: formerly an overseas province of Portugal; gained independence Nov. 11, 1975. 481,226 sq. mi. (1,246,375 sq. km). Capital: Luanda. Contemporary Examples Some 15,000 Cuban troops fought in the angolan civil war of the 1980s. Raúl Castro Honors Mandela, but Ignores His Message Alex Massie December 9, 2013 adjective of or […]
- Angular dispersion
a measure of the angular separation of light rays of different wavelength or color traversing a prism or diffraction grating, equal to the rate of change of the angle of deviation with respect to the change in wavelength.