oblique
Pronunciation: /əˈbliːk/
adjective
- 1neither parallel nor at right angles to a specified or implied line; slanting: we sat on the settee oblique to the fireplace
- Geometry (of a line, plane figure, or surface) inclined at other than a right angle.
- Geometry (of an angle) acute or obtuse.
- Geometry (of a cone, cylinder, etc.) with an axis not perpendicular to the plane of its base.
- Anatomy (especially of a muscle) neither parallel nor perpendicular to the long axis of a body or limb: an oblique abdominal muscle
noun
- 1Britishanother term for slash1 (sense 2 of the noun).

Origin:
late Middle English: from Latin obliquus

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Remember that oblique ends with -que.