The integration is performed over the fluid-exposed portion of the body's surface.

The diamond cutting process will often leave portions of the original crystal's surface intact.

It contributes to a significant portion of the tooth's surface.

I held the crown close to my eyes, tilted it so the light picked out a portion of its interior surface in high relief.

Between waves, a portion of its smooth surface projected above the water.

In only a standard year and a half it would be spring on this portion of the slow-orbiting planetoid's surface.

As if it were a metal with a small portion of its surface reduced to rust.

By nightfall the Americans had occupied a portion of the fort's surface.

Islands encompass a large portion of the world's surface.

The glandular region is restricted to the lower portion of the pitcher's inner surface.