A muscular organ located on the floor of the mouth in humans and most vertebrates which may serve various functions, such as taking and swallowing food or tasting or as a tactile organ or sometimes a prehensile organ.

1. A minor rock-stratigraphic unit of limited geographic extent; it disappears laterally in one direction.

2. A lava flow branching from a larger flow.

1. A protrusion of water into a region of different temperature, or salinity, or dissolved oxygen concentrating.

2. A protrusion of one water mass into a region occupied by a different water mass.