The pale, oblong smear at the level of his elbow was the face of Wesley Mouch, who was seated on the floor.
It had taken one instant, but in the next his foot went down on the brake, tearing the engine to a stop: for in the moment when his headlights had swept the ravine, he had glimpsed an oblong shape, darker than the gray of the weeds on the slope, and it had seemed to him that a brief white blur had been a human hand waving for help.
There are no more uses of "oblong" in the book.
Show samples from other sources
First came ten soldiers carrying clubs; these were all shaped like the three gardeners, oblong and flat, with their hands and feet at the corners: next the ten courtiers; these were ornamented all over with diamonds, and walked two and two, as the soldiers did.