What is the meaning of Oblong?

Having a length and width that are different; not square or circular.

(The addition of quotations indicative of this usage is being sought:) Roughly rectangular or elliptical.

Having the horizontal axis of a page longer than the vertical; In landscape orientation.

Something with an oblong shape.

A rectangle with length and width that are different.

An ellipse with minor and major axes that are different.

To extend so as to form an oblong shape.

To give an oblong shape to.

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Source: wiktionary.org