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1. (n.) tympanum
the recessed, usu. triangular space enclosed between the horizontal and sloping cornices of a pediment, often decorated with sculpture.
2. tympanum
a similar space between an arch and the horizontal head of a door or window below.
3. tympanum
(in certain insects) a drumlike vibrating structure in the body wall, functioning as a hearing organ.
4. tympanum
the diaphragm of a telephone.
5. tympanum
a drum or similar instrument.
Etymology: (1610–20; < L < Gk týmpanon drum, akin to týptein to beat, strike)
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| Definition of 'tympanum' |
Princeton's WordNet |
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1. (noun) middle ear, tympanic cavity, tympanum
the main cavity of the ear; between the eardrum and the inner ear
2. (noun) eardrum, tympanum, tympanic membrane, myringa
the membrane in the ear that vibrates to sound
3. (noun) kettle, kettledrum, tympanum, tympani, timpani
a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it
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| Definition of 'tympanum' |
Webster Dictionary |
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1. (noun) tympanum
the ear drum, or middle ear. Sometimes applied incorrectly to the tympanic membrane. See Ear
2. (noun) tympanum
a chamber in the anterior part of the syrinx of birds
3. (noun) tympanum
one of the naked, inflatable air sacs on the neck of the prairie chicken and other species of grouse
4. (noun) tympanum
the recessed face of a pediment within the frame made by the upper and lower cornices, being usually a triangular space or table
5. (noun) tympanum
the space within an arch, and above a lintel or a subordinate arch, spanning the opening below the arch
6. (noun) tympanum
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
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Definitions of tympanum 
