The river's name is derived from the Brythonic for "bright stream".

Kea came forward to take up the silver bowl and poured its water in a bright stream over the stone.

Where before the bright stream of energy had cleaved the darkness, now only the ship remained.

The lookouts even saw a bright stream flowing into the sea, offering the promise of fresh water.

The gold slid in a bright stream over the paper.

Not yet does my road lie southward to your bright streams.

A bright multicolumn stream of data began pouring downward on the screen.

Suddenly a bright stream of gunfire ripped across the prison yard.

As she spoke it spread, a bright beautiful stream dripping from dash to windshield.

He kept up a bright stream of talk for another few minutes.