oblique

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

• 2not expressed or done in a direct way:he issued an oblique attack on the President

• 3 Grammar denoting any case other than the nominative or vocative.

noun

• 1Britishanother term for slash¹ (sense 2 of the noun).

• 2an oblique muscle: it is the obliques and abdominals which create the well-trained look