oblong

nouns

a plane figure that deviates from a square or circle due to elongation
oblong
is a type of (narrower)
a two-dimensional shape
plane figure, two-dimensional figure

adjectives

(of a leaf shape) having a somewhat elongated form with approximately parallel sides
oblong
is similar to
(botany) of leaf shapes; of leaves having no divisions or subdivisions
simple, unsubdivided
deviating from a square or circle or sphere by being elongated in one direction
oblong
is derived from
oblongness
is similar to
primarily spatial sense; of relatively great or greater than average spatial extension or extension as specified
"a long road"; "a long distance"; "contained many long words"; "ten miles long"
long