(Of a plane shape) longer than broad, with the margins parallel for most of their length. (There is confusion about this term: many authors seem to regard it as including rounded ends; about as many others (including the authoritative 1962 Taxon article on plane shapes) only mean the term to include ‘quite a bit longer than wide’ (Taxon specifies 1.5–2× as long as wide).
Shaped more or less like a geometric rectangle (other than a square).
Rectangular, with nearly parallel margins, about two times as long as wide.
Two to four times longer than wide, with sides parallel or nearly so.
Rectangular and longer than wide, the extent roughly two to three times the breadth.
About two or three times longer than broad; rectangular with rounded corners.
Much longer than broad.
Having an elongated shape.
The length is greater than the width, and the sides are more or less parallel.
In botany, the shape of a leaf or any other flat plant organ that does not taper to each end, and of which the length is no more than about 8 times the width. An oblong leaf, unlike the oblong (or rectangle) of geometry, may have ends that are rounded to some degree.