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Right angle   /raɪt ˈæŋgəl/   Listen
noun
Angle  n.  
1.
The inclosed space near the point where two lines meet; a corner; a nook. "Into the utmost angle of the world." "To search the tenderest angles of the heart."
2.
(Geom.)
(a)
The figure made by. two lines which meet.
(b)
The difference of direction of two lines. In the lines meet, the point of meeting is the vertex of the angle.
3.
A projecting or sharp corner; an angular fragment. "Though but an angle reached him of the stone."
4.
(Astrol.) A name given to four of the twelve astrological "houses." (Obs.)
5.
A fishhook; tackle for catching fish, consisting of a line, hook, and bait, with or without a rod. "Give me mine angle: we 'll to the river there." "A fisher next his trembling angle bears."
Acute angle, one less than a right angle, or less than 90°.
Adjacent angles or Contiguous angles, such as have one leg common to both angles.
Alternate angles. See Alternate.
Angle bar.
(a)
(Carp.) An upright bar at the angle where two faces of a polygonal or bay window meet.
(b)
(Mach.) Same as Angle iron.
Angle bead (Arch.), a bead worked on or fixed to the angle of any architectural work, esp. for protecting an angle of a wall.
Angle brace, Angle tie (Carp.), a brace across an interior angle of a wooden frame, forming the hypothenuse and securing the two side pieces together.
Angle iron (Mach.), a rolled bar or plate of iron having one or more angles, used for forming the corners, or connecting or sustaining the sides of an iron structure to which it is riveted.
Angle leaf (Arch.), a detail in the form of a leaf, more or less conventionalized, used to decorate and sometimes to strengthen an angle.
Angle meter, an instrument for measuring angles, esp. for ascertaining the dip of strata.
Angle shaft (Arch.), an enriched angle bead, often having a capital or base, or both.
Curvilineal angle, one formed by two curved lines.
External angles, angles formed by the sides of any right-lined figure, when the sides are produced or lengthened.
Facial angle. See under Facial.
Internal angles, those which are within any right-lined figure.
Mixtilineal angle, one formed by a right line with a curved line.
Oblique angle, one acute or obtuse, in opposition to a right angle.
Obtuse angle, one greater than a right angle, or more than 90°.
Optic angle. See under Optic.
Rectilineal angle or Right-lined angle, one formed by two right lines.
Right angle, one formed by a right line falling on another perpendicularly, or an angle of 90° (measured by a quarter circle).
Solid angle, the figure formed by the meeting of three or more plane angles at one point.
Spherical angle, one made by the meeting of two arcs of great circles, which mutually cut one another on the surface of a globe or sphere.
Visual angle, the angle formed by two rays of light, or two straight lines drawn from the extreme points of an object to the center of the eye.
For Angles of commutation, Angles of draught, Angles of incidence, Angles of reflection, Angles of refraction, Angles of position, Angles of repose, Angles of fraction, see Commutation, Draught, Incidence, Reflection, Refraction, etc.


adjective
Right  adj.  
1.
Straight; direct; not crooked; as, a right line. "Right as any line."
2.
Upright; erect from a base; having an upright axis; not oblique; as, right ascension; a right pyramid or cone.
3.
Conformed to the constitution of man and the will of God, or to justice and equity; not deviating from the true and just; according with truth and duty; just; true. "That which is conformable to the Supreme Rule is absolutely right, and is called right simply without relation to a special end."
4.
Fit; suitable; proper; correct; becoming; as, the right man in the right place; the right way from London to Oxford.
5.
Characterized by reality or genuineness; real; actual; not spurious. "His right wife." "In this battle,... the Britons never more plainly manifested themselves to be right barbarians."
6.
According with truth; passing a true judgment; conforming to fact or intent; not mistaken or wrong; not erroneous; correct; as, this is the right faith. "You are right, Justice, and you weigh this well." "If there be no prospect beyond the grave, the inference is... right, "Let us eat and drink, for to-morrow we die.""
7.
Most favorable or convenient; fortunate. "The lady has been disappointed on the right side."
8.
Of or pertaining to that side of the body in man on which the muscular action is usually stronger than on the other side; opposed to left when used in reference to a part of the body; as, the right side, hand, arm. Also applied to the corresponding side of the lower animals. "Became the sovereign's favorite, his right hand." Note: In designating the banks of a river, right and left are used always with reference to the position of one who is facing in the direction of the current's flow.
9.
Well placed, disposed, or adjusted; orderly; well regulated; correctly done.
10.
Designed to be placed or worn outward; as, the right side of a piece of cloth.
At right angles, so as to form a right angle or right angles, as when one line crosses another perpendicularly.
Right and left, in both or all directions. (Colloq.)
Right and left coupling (Pipe fitting), a coupling the opposite ends of which are tapped for a right-handed screw and a left-handed screw, respectivelly.
Right angle.
(a)
The angle formed by one line meeting another perpendicularly, as the angles ABD, DBC.
(b)
(Spherics) A spherical angle included between the axes of two great circles whose planes are perpendicular to each other.
Right ascension. See under Ascension.
Right Center (Politics), those members belonging to the Center in a legislative assembly who have sympathies with the Right on political questions. See Center, n., 5.
Right cone, Right cylinder, Right prism, Right pyramid (Geom.), a cone, cylinder, prism, or pyramid, the axis of which is perpendicular to the base.
Right line. See under Line.
Right sailing (Naut.), sailing on one of the four cardinal points, so as to alter a ship's latitude or its longitude, but not both.
Right sphere (Astron. & Geol.), a sphere in such a position that the equator cuts the horizon at right angles; in spherical projections, that position of the sphere in which the primitive plane coincides with the plane of the equator. Note: Right is used elliptically for it is right, what you say is right, true. ""Right," cries his lordship."
Synonyms: Straight; direct; perpendicular; upright; lawful; rightful; true; correct; just; equitable; proper; suitable; becoming.





Collaborative International Dictionary of English 0.48


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"Right angle" Quotes from Famous Books



... his head to see a flash of light that winked through the dull, smoky veil, with startling clearness. He smiled and turned again to his saddle. "You'll often see that," he said. "It's the sun striking some bright object that happens to be at just the right angle to hit you with the reflection. A bit of new tin on a roof, a window, an automobile shield, anything bright enough, will do the trick. Come, we'll go back to the trail and follow ...
— The Eyes of the World • Harold Bell Wright
... that by which he showed that the line that regards the right angle in a triangle is equivalent to the two lines that contain that angle, or the problem about the area of the parabolic section of a cone. And Archimedes's servants were forced to hale him away from his draughts, to ...
— Essays and Miscellanies - The Complete Works Volume 3 • Plutarch
... melodrama. The hall measured some thirty-five feet square, and was nearly as lofty, its ceiling forming the second floor. The staircase was on the right, starting from curved steps in the inner right angle and making a complete turn from a half landing to reach a gallery which ran around three sides of the first floor. The fourth contained the doorway, with a window on each hand and four ...
— The Strange Case of Mortimer Fenley • Louis Tracy
... adds to the comfort of the patient; and the limb should be placed in the attitude which, in the event of stiffness resulting, will least interfere with its usefulness. The elbow, for example, should be flexed to a little less than a right angle; at the wrist, the hand should be dorsiflexed and the fingers flexed slightly towards ...
— Manual of Surgery - Volume First: General Surgery. Sixth Edition. • Alexis Thomson and Alexander Miles
... seen the fugitives. They were fox-trotting along, in twos and threes, for the road was fairly wide. There was no air of discipline about the party, nothing to indicate that it was of a military character. As they came opposite the fugitives, who had struck off the road at a right angle, they stopped, in obedience to a signal from one of ...
— Across the Mesa • Jarvis Hall


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