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Tympanum :: Tympanum (n.) 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..

Tympanum :: Tympanum (n.) A chamber in the anterior part of the syrinx of birds.

Fenestra :: Fenestra (n.) A small opening; esp., one of the apertures, closed by membranes, between the tympanum and internal ear..

Tympanum :: Tympanum (n.) The ear drum, or middle ear. Sometimes applied incorrectly to the tympanic membrane. See Ear..

Tympanic :: Tympanic (a.) Of or pertaining to the tympanum.

Promontory :: Promontory (n.) A projecting part. Especially: (a) The projecting angle of the ventral side of the sacrum where it joins the last lumbar vertebra. (b) A prominence on the inner wall of the tympanum of the ear.

Tympanums :: Tympanums (pl. ) of Tympanu.

Tympan :: Tympan (n.) A panel; a tympanum.

Ossicle :: Ossicle (n.) A little bone; as, the auditory ossicles in the tympanum of the ear..

Post-tympanic :: Post-tympanic (a.) Situated behind the tympanum, or in the skull, behind the auditory meatus..

Incus :: Incus (n.) One of the small bones in the tympanum of the ear; the anvil bone. See Ear.

Tympanum :: Tympanum (n.) One of the naked, inflatable air sacs on the neck of the prairie chicken and other species of grouse..

Eardrum :: Eardrum (n.) The tympanum. See Illust. of Ear.

Tympano- :: Tympano- () A combining form used in anatomy to indicate connection with, or relation to, the tympanum; as in tympanohyal, tympano-Eustachian..

Tympanum :: Tympanum (n.) The space within an arch, and above a lintel or a subordinate arch, spanning the opening below the arch..

Drum :: Drum (n.) The tympanum of the ear; -- often, but incorrectly, applied to the tympanic membrane..

Tympanic :: Tympanic (a.) Like a tympanum or drum; acting like a drumhead; as, a tympanic membrane..

Tympanum :: Tympanum (n.) The recessed face of a pediment within the frame made by the upper and lower cornices, being usually a triangular space or table..

Tympanohyal :: Tympanohyal (a.) Of or pertaining to the tympanum and the hyoidean arch.

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