From somewhere within or beyond the collapsed section he heard the trickle of running water, a constant drip and gurgle that added to his uneasiness.

The night sounds and the constant drip of water from foliage above them set their nerves on edge.

One day he came across a stone that had been hollowed out by a constant drip of water.

A constant drip can waste many gallons of water in a year's time.

Tall formations, lightless passages, the constant drip of water.

They came in a constant quick drip.

Save for the constant drip, drip of water, there was no sound.

Some- where she heard a constant, slow drip of water.

In Iraq, terrorism kills many people everyday, in a constant drip.

A cough may result from the constant postnasal drip.