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The Collaborative International Dictionary
Obtuse angle

Angle \An"gle\ ([a^][ng]"g'l), n. [F. angle, L. angulus angle, corner; akin to uncus hook, Gr. 'agky`los bent, crooked, angular, 'a`gkos a bend or hollow, AS. angel hook, fish-hook, G. angel, and F. anchor.]

  1. The inclosed space near the point where two lines meet; a corner; a nook.

    Into the utmost angle of the world.
    --Spenser.

    To search the tenderest angles of the heart.
    --Milton.

  2. (Geom.)

    1. The figure made by. two lines which meet.

    2. 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.
    --Dryden.

  4. (Astrol.) A name given to four of the twelve astrological ``houses.'' [Obs.]
    --Chaucer.

  5. [AS. angel.] 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. --Shak. A fisher next his trembling angle bears. --Pope. Acute angle, one less than a right angle, or less than 90[deg]. Adjacent or Contiguous angles, such as have one leg common to both angles. Alternate angles. See Alternate. Angle bar.

    1. (Carp.) An upright bar at the angle where two faces of a polygonal or bay window meet.
      --Knight.

    2. (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.
      --Knight.

      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[deg].

      Optic angle. See under Optic.

      Rectilineal 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[deg] (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, draught, incidence, reflection, refraction, position, repose, fraction, see Commutation, Draught, Incidence, Reflection, Refraction, etc.

WordNet
obtuse angle

n. an angle between 90 and 180 degrees

Usage examples of "obtuse angle".

Suddenly, after rounding an obtuse angle at the top of a sharp ascent, the car came to a standstill.

What I saw was projected from a screen above my head, where everything was upside down, and this second screen was the eyepiece, as it were, of a primitive periscope made of two packing cases arranged in an obtuse angle.

National Avenue met Amberson Boulevard here at an obtuse angle, and the removal of the pillars made the Boulevard seem a cross-street of no overpowering importance--certainly it did not seem to be a boulevard!

She could not have managed the obtuse angle required to turn left onto Bayildim Street, but there was a cobblestone alley directly across the intersection.

The fifth was unevenly made, with his head sinking into his body at an obtuse angle.

They converge at an obtuse angle ten feet below the meadow into which they are embedded.

The left foot was drawn back behind it and pointed towards the tiny harbour, the two imprints making an obtuse angle.

The car fishtailed, rocked, and then it slammed at an obtuse angle into the front of the patrol car.

Oh, the elbow was bent at an obtuse angle, the wrist twisted slightly, the fingers curled.

Spence jerked his head up and sent himself floundering away at an obtuse angle.

He leaped at one of the leg-hold -- ing demons, grabbed one of its own legs, lifted it, braced one of his feet against the other leg and forced a split that went into an obtuse angle before the demon's leg broke off.

The desk had the shape of a boomerang, enclosing him in an obtuse angle for more available working space.