labrum

A lip or liplike structure, such as the one forming the roof of the mouth in insects.

The outer margin of the opening of a gastropod shell.

In Rom. archæol., a bath-tub, especially one of those of hard, fine material more or loss richly sculptured, rather common in the museums of Italy. Also called lavabrum.

In zoöl, alip or lip-like part. Specifically.

A lip or edge, as of a basin.