What is "upthrusting"

Usage examples of "upthrusting".

The long swish of it lifted on an invisible wave with syllables of boomerang antennae, funnels arcing back, a pi-shaped upthrusting at the stern.

There was only a dim red light from a brazier in the room, but it glinted on the pale streak in her hair and outlined her upthrusting breasts.

There was not a single upthrusting pyramid, not even a temple tall enough to be seen.

It was not so much a mountainous region as it was a string of peaks, a long finger of upthrusting terrain reaching out toward the east from the broad ranges that formed the spine of the continent.

Beyond those dancing pinpoints of fire, seemingly against the foothills of the upthrusting ramparts, was another light.