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in mathematics, figure formed by the intersection of two straight lines; the lines are called the sides of the angle and their point of intersection the vertex of the angle. Angles are commonly measured in degrees (°) or in radians. If one side and the vertex of an angle are fixed and the other side is rotated about the vertex, it sweeps out a complete circle of 360° or 2π radians with each complete rotation. Half a rotation from 0° or 0 radians results in a straight angle, equal to 180° or π radians; the sides of a straight angle form a straight line. A quarter rotation (half of a straight angle) results in a right angle, equal to 90° or π/2 radians; the sides of a right angle are perpendicular to one another. An angle less than a right angle is acute, and an angle greater than a right angle is obtuse. Two angles that add up to a right angle are complementary. Two angles that add up to a straight angle are supplementary. One of the geometric problems of antiquitygeometric problems of antiquity,
three famous problems involving elementary geometric constructions with straight edge and compass, conjectured by the ancient Greeks to be impossible but not proved to be so until modern times.
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 is the trisection of an angle. Angles can also be formed by higher–dimensional figures, as by a line and a plane, or by two intersecting planes.
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Angle (Angular)

(religion, spiritualism, and occult)

The term “angle” can be used in two different ways in astrology. In its primary, traditional meaning, angle refers to one of the four “corners” (figuratively speaking) of a chart—namely, the cusps of the first, fourth, seventh, and tenth houses. Planets making a conjunction with the angles—which are sometimes called angular planets, particularly when they are in an angular house—are said to exercise an especially strong influence over the entire horoscope. In practice, astrologers pay the most attention to angular planets in the first and tenth houses. Angle is also used as an alternative term for aspect, as when one talks about the angular relationship between two planets.

The Astrology Book, Second Edition © 2003 Visible Ink Press®. All rights reserved.


The geometric figure, arithmetic quantity, or algebraic signed quantity determined by two rays emanating from a common point or by two planes emanating from a common line.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


1. The figure made by two lines that meet.
2. The difference in direction of such intersecting lines, or the space within them.
3. A projecting or sharp corner.
4. A secluded area resembling a corner; a nook.
5. An L-shaped metal member; an angle iron.
7. A fitting on a gutter for rainwater which changes the gutter’s direction.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


1. the space between two straight lines that diverge from a common point or between two planes that extend from a common line
2. the shape formed by two such lines or planes
3. the extent to which one such line or plane diverges from another, measured in degrees or radians
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Chemical analysis of powder and set forms of Portland cement, gray MTA, white MTA and MTA Angulus. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006; 102(6): 809-815.
Whether taking biopsies from the gastric angulus rather than the antrum and increasing the number of biopsy samples placed in the bottle improves time to positivity and sensitivity, remains unanswered by this study.
From the Angles ( that is, the country known as Angulus, which is said to remain unpopulated to this day ( are descended all Northumbrian stock and the other English peoples.
Therefore, the value of features such as inclinatio frontalis, tubera frontalia, and parietalia, processus zygomaticus, height of the os zygomaticum, planum nuchale, upper ridge and shape of the orbitae, and angulus mandibulae for the reliable determination of gender must be critically assessed.
5 read, in the manuscript, `Hic duo sunt fonsiuiomdens ast angulus unus/Non satis expellit frigora lusqua domus'.
cert nostrate Principe nusquam praesentius Balsamum, nusquam benignius, soluens obstupefactos artus, atque exhilarans, tumentibus iam venis, arterijs micantibus, spiritibusque tabellarijs laetum hunc nuncium vbique deferentibus, vt nullus sit angulus corporis, nulla venula, vbi non adsit CAROLVS.(3)
Results showed the efficiency of botulinum in MH, but many times in MH concomitant with bone enlargement in the angulus; therefore, the best aesthetic results may be gained with manipulation of the bony structure.
The most frequent recurrence is then in tumors located in sites with difficult access, such as the frontal sinus or even the maxillary sinus, the inferior wall of which may be found far below the level of the nasal cavity floor, where radical resection of a lesion in the region of angulus anteromedialis may appear impossible, if only via endoscopic access [15, 40, 46].
A slight angular prominence (margo dorsalis) is formed at the level of scapular spine which divides the dorsal margin into very shorter cranial part towards the cranial angle (angulus cranialis) and a longer rounder caudal part towards the caudal angle (angulus caudalis).
Among the lesions, 8 (8/13, 62%) were located in the antrum, 4 (4/13, 31%) were in the body, and one (1/13, 7%) was in the angulus. In the term of gross shape by EGD, 5 lesions demonstrated Yamada Type I and 8 were Yamada Type II.