The Collaborative International Dictionary of English v.0.48:

Oblique \Ob*lique"\, 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 25[deg]. 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]

The Collaborative International Dictionary of English v.0.48:

Ascension \As*cen"sion\, n. [F. ascension, L. ascensio, fr.
   ascendere. See Ascend.]
   1. The act of ascending; a rising; ascent.
      [1913 Webster]

   2. Specifically: The visible ascent of our Savior on the
      fortieth day after his resurrection. (--Acts i. 9.) Also,
      Ascension Day.
      [1913 Webster]

   3. An ascending or arising, as in distillation; also that
      which arises, as from distillation.
      [1913 Webster]

            Vaporous ascensions from the stomach. --Sir T.
                                                  Browne.
      [1913 Webster]

   Ascension Day, the Thursday but one before Whitsuntide, the
      day on which commemorated our Savior's ascension into
      heaven after his resurrection; -- called also Holy
      Thursday.

   Right ascension (Astron.), that degree of the equinoctial,
      counted from the beginning of Aries, which rises with a
      star, or other celestial body, in a right sphere; or the
      arc of the equator intercepted between the first point of
      Aries and that point of the equator that comes to the
      meridian with the star; -- expressed either in degrees or
      in time.

   Oblique ascension (Astron.), an arc of the equator,
      intercepted between the first point of Aries and that
      point of the equator which rises together with a star, in
      an oblique sphere; or the arc of the equator intercepted
      between the first point of Aries and that point of the
      equator that comes to the horizon with a star. It is
      little used in modern astronomy.
      [1913 Webster]