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tym·pa·numalso tim·pa·num (tĭm′pə-nəm)
n. pl. tym·pa·na (-nə) or tym·pa·nums also tim·pa·na or tim·pa·nums
a. Anatomy See middle ear.
b. See eardrum.
2. Zoology A membranous external auditory structure, as in certain insects.
a. The ornamental recessed space or panel enclosed by the cornices of a triangular pediment.
b. A similar space between an arch and the lintel of a portal or window.
4. The diaphragm of a telephone.
[Medieval Latin, from Latin, drum, from Greek tumpanon.]
n, pl -nums or -na (-nə)
1. (Anatomy) anatomy
a. the cavity of the middle ear
b. another name for tympanic membrane
2. (Zoology) any diaphragm resembling that in the middle ear in function
3. (Architecture) architect
a. the recessed space bounded by the cornices of a pediment, esp one that is triangular in shape and ornamented
b. the recessed space bounded by an arch and the lintel of a doorway or window below it
4. (Instruments) music a tympan or drum
5. (Mechanical Engineering) a scoop wheel for raising water
[C17: from Latin, from Greek tumpanon drum; related to Greek tuptein to beat]
tym•pa•num(ˈtɪm pə nəm)
n., pl. -nums, -na (-nə).
a. the recessed, usu. triangular space enclosed between the horizontal and sloping cornices of a pediment, often decorated with sculpture.
b. a similar space between an arch and the horizontal head of a door or window below.
3. (in certain insects) a drumlike vibrating structure in the body wall, functioning as a hearing organ.
4. the diaphragm of a telephone.
5. a drum or similar instrument.
[1610–20; < Latin < Greek týmpanon drum, akin to týptein to beat, strike]
Switch to new thesaurus
|Noun||1.||tympanum - the main cavity of the ear; between the eardrum and the inner ear|
auditory apparatus - all of the components of the organ of hearing including the outer and middle and inner ears
auditory tube, Eustachian tube - either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum
|2.||tympanum - the membrane in the ear that vibrates to sound|
ear - the sense organ for hearing and equilibrium
perforated eardrum - an eardrum with a hole or tear in it; can interfere with normal hearing and cause other ear problems
umbo - a slight rounded elevation where the malleus attaches to the eardrum
|3.||tympanum - a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it|
tympanum[ˈtɪmpənəm] N (tympanums, tympana (pl)) (Anat, Archit) → tímpano m
tympanum[ˈtɪmpənəm] n (Anat, Archit) → timpano
n. tímpano, oído medio.