By pumping water across the gills, the shark does not need to move to breathe.

Even after the blowout was sealed, the farmers continued to pump plastic sludge across the impact zone.

Gunn took his cue and pumped a ten-round burst through a wooden door on a shed across the road.

Today sand pumping across the Tweed River mouth has filled it in and changed its character.

They'd been up there for months, while I'd been pumping my way across the interior, climbing that mountain, watching friends die.

This drives the protein to change shape and pump a proton across the membrane.

Blood began to pump across the table, pooling on the formica and jetting onto the white-tiled floor.

He cried out in agony, felt hot blood pumping across his face.

However, certain species, like the nurse shark, are capable of pumping water across their gills, allowing them to rest on the ocean bottom.

Here, light energy is used to pump protons across the chloroplast membrane.