Definition of tympana:
(n) :
(anatomy, zootomy) The eardrum (tympanic membrane, membrana tympanica).
(n) :
(anatomy, zootomy) The main portion of the middle ear: the tympanic cavity (cavitas tympani).
(n) :
(anatomy, zootomy) Any of various anatomic structures in various animals with analogy to a drum head:
(n) :
(zootomy, entomology) A thin tense membrane covering the hearing organ on the leg or body of some insects, sometimes adapted (as in cicadas) for producing sound.
(n) :
(zootomy) A membranous resonator in a sound-producing organ in frogs and toads.
(n) :
(zootomy) (in certain birds) The labyrinth at the bottom of the windpipe.