2. Noun. (anatomy) The middle ear. ¹
3. Noun. (context: by extension) The diaphragm of a telephone. ¹
4. Noun. (zoology) An external hearing organ in some insects. ¹
5. Noun. (architecture) An ornamental panel in any triangular space. ¹
6. Noun. (musical instruments) A kettledrum. ¹
¹ Source: wiktionary.com
Definition of Timpanum
1. tympanum [n -NA or -NUMS] - See also: tympanum