∙ A triangular space between the sides of a pediment. architecture
∙ The space within an arch, and above a lintel or a subordinate arch, spanning the opening below the arch. architecture
∙ The middle ear.
∙ The eardrum.
∙ A hearing organ in frogs, toads and some insects.
∙ 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. engineering
Watch example usage of "tympanum"
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