Gutter

The word "gutter" refers to a long, thin trough, usually one that runs straight. One type of gutter is a rain gutter, which serves to collect rain and run it down to the ground or some despository so that it doesn't drip off the edges of a roof. Another type of gutter is found in bowling. There are long grooves (called, of course, gutters)which are slightly wider than a bowling ball on either side of the lane, and a ball can easily roll into them. If it does, the ball cannot strike any pins, and the player receives no points for that throw.