oblong
n.a shape that is longer in one direction than the other, like a rectangle. It is a common word for things that are not perfectly round or square.
n.a shape or object that is longer in one dimension than in another, typically resembling a rectangle. Often used to describe the physical dimensions of objects or the general form of a figure.
“The table has an oblong shape.”
“The architect designed the building with an oblong floor plan to maximize the amount of natural light entering the central atrium.”
“The artist's signature style is characterized by the use of oblong forms, which he uses to create a sense of movement and perspective within the static canvas.”
From Middle English oblong, oblonge, borrowed from Latin oblongus.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.