Tymbal

Tymbal (or timbal) is a term for a corrugated exoskeletal structure used to produce sounds in insects. In male cicadas, the tymbals are membranes in the abdomen, responsible for the characteristic sound produced by the insect. In tiger moths, the tymbals are modified regions of the thorax, and produce high-frequency clicks. The paired tymbals of a...
Found on http://en.wikipedia.org/wiki/Tymbal

Tymbal

• (n.) A kind of kettledrum.
Found on http://thinkexist.com/dictionary/meaning/tymbal/

Tymbal

The sound-producing 'drum-skin' of a cicada.
Found on http://www.earthlife.net/insects/glossary.html
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