What is the meaning of Tympanum?

A drum.

Any of various anatomic structures in various animals with analogy to a drum head:

  1. The eardrum (tympanic membrane, membrana tympanica).
  2. The main portion of the middle ear: the tympanic cavity (cavitas tympani).
  3. A thin tense membrane covering the hearing organ on the leg or body of some insects, sometimes adapted (as in cicadas) for producing sound.
  4. A membranous resonator in a sound-producing organ in frogs and toads.
  5. The labyrinth at the bottom of the windpipe.

The eardrum (tympanic membrane, membrana tympanica).

The main portion of the middle ear: the tympanic cavity (cavitas tympani).

A thin tense membrane covering the hearing organ on the leg or body of some insects, sometimes adapted (as in cicadas) for producing sound.

A membranous resonator in a sound-producing organ in frogs and toads.

The labyrinth at the bottom of the windpipe.

A vertical recessed triangular space between the sides of a pediment, typically decorated

  1. The recessed triangular space within an arch, and above a lintel or a subordinate arch, spanning the opening below the arch

The recessed triangular space within an arch, and above a lintel or a subordinate arch, spanning the opening below the arch

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.

drum, timbrel, tambour, tambourine

  1. timbrel as a figure of something effeminate or enervating

timbrel as a figure of something effeminate or enervating

:

  1. drum or wheel in machines for raising weights, in water organs, etc.
  2. :
    1. triangular area of a pediment
    2. panel of a door
    3. part of the clepsydra

      drum or wheel in machines for raising weights, in water organs, etc.

      :

      1. triangular area of a pediment
      2. panel of a door
      3. part of the clepsydra

        triangular area of a pediment

        panel of a door

        part of the clepsydra

        form removed with the spelling reform of 2005; superseded by tympanon

        Source: wiktionary.org