(analytic geometry) A system in which the coordinate axes are oblique to each other.

(anatomy) 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.

(astronomy, geography) 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.

(grammar) Any noun case except the nominative case (and sometimes the vocative case), where the noun is the object of a verb or the object of a preposition.

Synonym of oblique speech

(rhetoric) Speech which is quoted indirectly, or in a different person from that employed by the original speaker.

Imposing obligation, legally, morally, or otherwise; binding; mandatory. / Requiring a matter or obligation.

(transitive, Canada, US, Scotland) To bind, compel, constrain, or oblige by a social, legal, or moral tie. / (transitive, Canada, US, Scotland) To cause to be grateful or indebted; to oblige.

(biology) Requiring a (specified) way of life, habitat, etc.. / (biology) Absolutely indispensable; essential.

Abusive language. / Disgrace. / (archaic) A false accusation; malevolent rumors.