Source : Webster's Revised Unabridged Dictionary (1913)

Oblique \Ob*lique"\, a. [F., fr. L. obliquus; ob (see {Ob-}) +
   liquis oblique; cf. licinus bent upward, Gr ? slanting.]
   [Written also {oblike}.]
   1. Not erect or perpendicular; neither parallel to, nor at
      right angles from, the base; slanting; inclined.

            It has a direction oblique to that of the former
            motion.                               --Cheyne.

   2. Not straightforward; indirect; obscure; hence,
      disingenuous; underhand; perverse; sinister.

            The love we bear our friends . . . Hath in it
            certain oblique ends.                 --Drayton.

            This mode of oblique research, when a more direct
            one is denied, we find to be the only one in our
            power.                                --De Quincey.

            Then would be closed the restless, oblique eye. That
            looks for evil, like a treacherous spy. --Wordworth.

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

            His natural affection in a direct line was strong,
            in an oblique but weak.               --Baker.

   {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 \Ob*lique"\, v. i. [imp. & p. p. {Obliqued}; p. pr. &
   vb. n. {Obliquing}.]
   1. To deviate from a perpendicular line; to move in an
      oblique direction.

            Projecting his person towards it in a line which
            obliqued from the bottom of his spine. --Sir. W.
                                                  Scott.

   2. (Mil.) To march in a direction oblique to the line of the
      column or platoon; -- formerly accomplished by oblique
      steps, now by direct steps, the men half-facing either to
      the right or left.

Oblique \Ob*lique"\, n. (Geom.)
   An oblique line.

Cone \Cone\, n. [L. conus cone (in sense 1), Gr. ?; akin to Skr.
   [,c]ana whetstone, L. cuneus wedge, and prob. to E. hone. See
   {Hone}, n.]
   1. (Geom.) A solid of the form described by the revolution of
      a right-angled triangle about one of the sides adjacent to
      the right angle; -- called also a {right cone}. More
      generally, any solid having a vertical point and bounded
      by a surface which is described by a straight line always
      passing through that vertical point; a solid having a
      circle for its base and tapering to a point or vertex.

   2. Anything shaped more or less like a mathematical cone; as,
      a volcanic cone, a collection of scori[ae] around the
      crater of a volcano, usually heaped up in a conical form.

            Now had Night measured with her shadowy cone Half
            way up hill this vast sublunar vault. --Milton.

   3. (Bot.) The fruit or strobile of the {Conifer[ae]}, as of
      the pine, fir, cedar, and cypress. It is composed of woody
      scales, each one of which has one or two seeds at its
      base.

   4. (Zo["o]l.) A shell of the genus {Conus}, having a conical
      form.

   {Cone of rays} (Opt.), the pencil of rays of light which
      proceed from a radiant point to a given surface, as that
      of a lens, or conversely.

   {Cone pulley}. See in the Vocabulary.

   {Oblique} or {Scalene cone}, a cone of which the axis is
      inclined to the plane of its base.

   {Eight cone}. See {Cone}, 1.

Source : WordNet®

oblique
     adj 1: slanting or inclined in direction or course or
            position--neither parallel nor perpendicular nor
            right-angular; "the oblique rays of the winter sun";
            "acute and obtuse angles are oblique angles"; "the
            axis of an oblique cone is not perpendicular to its
            base" [ant: {parallel}, {perpendicular}]
     2: indirect in departing from the accepted or proper way;
        misleading; "used devious means to achieve success"; "gave
        oblique answers to direct questions"; "oblique political
        maneuvers" [syn: {devious}]

oblique
     n 1: any grammatical case other than the nominative [syn: {oblique
          case}] [ant: {nominative}]
     2: a diagonally arranged abdominal muscle on either side of the
        torso [syn: {external oblique muscle}, {musculus obliquus
        externus abdominis}, {abdominal external oblique muscle}]