lapper

One who laps with the tongue.

In entomology, one of the tropin or mouth-organs which are used for lapping honey or other food, as the tongue of a bee.

One who laps.

One who uses a lap, as in a lapidary’s work.

In cotton manufacturing, a machine which receives the scutched cotton from the batting-and blowing-machine, and compacts it into a lap or fleece upon the surface of a roller called a lap-roller.

A competitor who is one lap behind another, in the same race, and hence physically in front.