A triangular space between the sides of a pediment.
The space within an arch, and above a lintel or a subordinate arch, spanning the opening below the arch.
The middle ear.
The eardrum.
A hearing organ in frogs, toads and some insects.
In certain birds, the labyrinth at the bottom of the windpipe.
A drum-shaped wheel with spirally curved partitions by which water is raised to the axis when the wheel revolves with the lower part of the circumference submerged; used for raising water, as for irrigation.