(astronomy, photography) The line of light recorded on a photographic medium when a time exposure is made of a star in the nighttime sky using a camera on a fixed mount, caused by the rotation of the earth during the period of time when the camera's shutter is held open.

plural of trail mix

The journeys taken by hippies and others in the 1960s and 1970s, typically involving cheap travel.

(graph theory) a trail that visits each node exactly once

The potentially recoverable traces of data left behind by any activity; the general case, independent of medium, of which a paper trail is (in its literal sense) a medium-specific case.

Used other than figuratively or idiomatically: see wombat, trail. / (Australian politics, informal) The rural campaign trail, particularly with reference to the National Party.

A hiking trail that runs through the countryside, along which there are marked stations or stops next to points of natural, technological, or cultural interest.

(western Canada) A beaten path where children play.

(slang) A vertical line of hair that extends up along the middle of a person's (usually a man's) abdomen from pubic hair to navel.

(slang) A vertical line of hair that extends up along the middle of a person's (usually a man's) abdomen from pubic hair to navel.