[1] : The Collaborative International Dictionary of English v.0.48

oblique \oblique"\, a. f., fr. l. obliquus; ob see ob- +
   liquis oblique; cf. licinus bent upward, gr. le`chrios
   slanting. written also oblike.
   1913 webster
   1. not erect or perpendicular; neither parallel to, nor at
      right angles from, the base; slanting; inclined.
      1913 webster

            it has a direction oblique to that of the former
            motion.                               --cheyne.
      1913 webster

   2. not straightforward; indirect; obscure; hence,
      disingenuous; underhand; perverse; sinister.
      1913 webster

            the love we bear our friends . . .
            hath in it certain oblique ends.      --drayton.
      1913 webster

            this mode of oblique research, when a more direct
            one is denied, we find to be the only one in our
            power.                                --de quincey.
      1913 webster

            then would be closed the restless, oblique eye.
            that looks for evil, like a treacherous spy.
                                                  --wordworth.
      1913 webster

   3. not direct in descent; not following the line of father
      and son; collateral.
      1913 webster

            his natural affection in a direct line was strong,
            in an oblique but weak.               --baker.
      1913 webster

   oblique angle, oblique ascension, etc. see under angle,
      ascension, etc.

   oblique arch arch., an arch whose jambs are not at right
      angles with the face, and whose intrados is in consequence
      askew.

   oblique bridge, a skew bridge. see under bridge, n.

   oblique case gram., any case except the nominative. see
      case, n.

   oblique circle projection, a circle whose plane is
      oblique to the axis of the primitive plane.

   oblique fire mil., a fire the direction of which is not
      perpendicular to the line fired at.

   oblique flank fort., that part of the curtain whence the
      fire of the opposite bastion may be discovered. --wilhelm.

   oblique leaf. bot.
      a a leaf twisted or inclined from the normal position.
      b a leaf having one half different from the other.

   oblique line geom., a line that, meeting or tending to
      meet another, makes oblique angles with it.

   oblique motion mus., a kind of motion or progression in
      which one part ascends or descends, while the other
      prolongs or repeats the same tone, as in the accompanying
      example.

   oblique muscle anat., a muscle acting in a direction
      oblique to the mesial plane of the body, or to the
      associated muscles; -- applied especially to two muscles
      of the eyeball.

   oblique narration. see oblique speech.

   oblique planes dialing, planes which decline from the
      zenith, or incline toward the horizon.

   oblique sailing naut., the movement of a ship when she
      sails upon some rhumb between the four cardinal points,
      making an oblique angle with the meridian.

   oblique speech rhet., speech which is quoted indirectly,
      or in a different person from that employed by the
      original speaker.

   oblique sphere astron.  geog., the celestial or
      terrestrial sphere when its axis is oblique to the horizon
      of the place; or as it appears to an observer at any point
      on the earth except the poles and the equator.

   oblique step mil., a step in marching, by which the
      soldier, while advancing, gradually takes ground to the
      right or left at an angle of about 25deg. it is not now
      practiced. --wilhelm.

   oblique system of coordinates anal. geom., a system in
      which the coordinate axes are oblique to each other.
      1913 webster
see also:
ob- oblike oblique angle oblique ascension angle ascension 
oblique arch oblique bridge bridge oblique case case 
oblique circle oblique fire oblique flank oblique leaf oblique line 
oblique motion oblique muscle oblique narration oblique speech oblique planes 
oblique sailing oblique sphere oblique step oblique system of coordinates 

[2] : The Collaborative International Dictionary of English v.0.48

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.
      1913 webster

            into the utmost angle of the world.   --spenser.
      1913 webster

            to search the tenderest angles of the heart.
                                                  --milton.
      1913 webster

   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.
          1913 webster

   3. a projecting or sharp corner; an angular fragment.
      1913 webster

            though but an angle reached him of the stone.
                                                  --dryden.
      1913 webster

   4. astrol. a name given to four of the twelve astrological
      "houses." obs. --chaucer.
      1913 webster

   5. as. angel. a fishhook; tackle for catching fish,
      consisting of a line, hook, and bait, with or without a
      rod.
      1913 webster

            give me mine angle: we 'll to the river there.
                                                  --shak.
      1913 webster

            a fisher next his trembling angle bears. --pope.
      1913 webster

   acute angle, one less than a right angle, or less than
      90deg.

   adjacent 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. --knight.
      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. --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
      90deg.

   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 90deg 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.
      1913 webster
see also:
acute angle adjacent contiguous angles alternate angles alternate angle bar 
angle iron angle bead angle brace angle tie angle leaf 
angle meter angle shaft curvilineal angle external angles facial angle 
facial internal angles mixtilineal angle oblique angle obtuse angle 
optic angle optic rectilineal right-lined angle right angle 
solid angle spherical angle visual angle for angles of commutation draught 
incidence reflection refraction position repose 
fraction commutation draught incidence reflection 
refraction 

[3] : WordNet (r) 2.0

oblique angle
     n : an angle that is not a right angle or a multiple of a right
         angle ant: right angle
see also:
right angle 

Angle >> A Words
Angle, definition of term: Angle
angle_pag1.html

Angle Bracket >> A Words
Angle Bracket, definition of term: Angle Bracket
angle+bracket_pag1.html

Angle Iron >> A Words
Angle Iron, definition of term: Angle Iron
angle+iron_pag1.html

Acute Angle >> A Words
Acute Angle, definition of term: Acute Angle
acute+angle_pag1.html

Dihedral Angle >> D Words
Dihedral Angle, definition of term: Dihedral Angle
dihedral+angle_pag1.html

Angle Of Attack >> A Words
Angle Of Attack, definition of term: Angle Of Attack
angle+of+attack_pag1.html

Angle Of Repose >> A Words
Angle Of Repose, definition of term: Angle Of Repose
angle+of+repose_pag1.html