Now it was little more than a vertical cleft, and the rocky walls were sliding past at thirty or forty miles an hour.

Over his sights, he picked out the dark vertical cleft in the front of the ear and followed it down to its lowest point.

Erosion had carved deep, vertical clefts so that the mound looked a little like a huge gear turned on edge.

Even the tail is carefully protected, fitting snugly into a deep groove on the animal's rump, where two sheets of armour meet in a vertical cleft.

She stared at me, and her frown made two vertical clefts between her dark brows, over the generous nose.

The remaining three Brandon, Rip, and Kaipo-squeezed through a vertical cleft between two boulders at the back and into the real darkness.

However, he was by no means sure that it ended, since it was not a vertical cleft, but tilted slightly from the perpendicular.

Posterior pharyngeal flap surgery is mostly used for vertical clefts of the soft palate.

To the sides it leveled out somewhat, at the near edge; but the far edge remained an almost vertical cleft as far as they could see.

Then the man halted before a narrow vertical cleft in the rocky escarpment towering above him.