(of) a figure having four straight sides and angles at 90 degrees, longer than it is wide
elongated and rounded
Cases of word usage
1) a large, oblong container for a person to sit or lie in and wash the whole body (bath)
2) a small, flat, oblong piece of wood or bone, marked with spots (domino)
3) (of) a four-sided shape, especially a square or oblong (quadrilateral)
