GNU Collaborative International Dictionary of English

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Found 3 definitions

1.       
   Oblique , a. [F., fr. L. obliquus; ob (see Ob-) + liquis oblique; cf. licinus bent upward, Gr. λέχριος slanting.] [Written also oblike.]
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   Not erect or perpendicular; neither parallel to, nor at right angles from, the base; slanting; inclined.
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   It has a direction oblique to that of the former motion.
   Cheyne.
   
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   Not straightforward; indirect; obscure; hence, disingenuous; underhand; perverse; sinister.
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   The love we bear our friends . . . 
   Hath in it certain oblique ends.
   Drayton.
   
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   This mode of oblique research, when a more direct one is denied, we find to be the only one in our power.
   De Quincey.
   
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   Then would be closed the restless, oblique eye.
   That looks for evil, like a treacherous spy.
   Wordworth.
   
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   Not direct in descent; not following the line of father and son; collateral.
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   His natural affection in a direct line was strong, in an oblique but weak.
   Baker.
   
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   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°. It is not now practiced. Wilhelm. -- Oblique system of coordinates (Anal. Geom.), a system in which the coordinate axes are oblique to each other.
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2.       
   Oblique, n. (Geom.) An oblique line.
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3.       
   Oblique, v. i. [imp. & p. p. Obliqued ; p. pr. & vb. n. Obliquing.]
   To deviate from a perpendicular line; to move in an oblique direction.
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   Projecting his person towards it in a line which obliqued from the bottom of his spine.
   Sir. W. Scott.
   
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   (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.
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