tympaniform

tympaniform

(ˈtɪmpənɪˌfɔːm; tɪmˈpænɪˌfɔːm)
adj
resembling or having the form of a drum or drum head
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Male ducks of the subfamily Anatinae and some species of the Anserinae feature a balloon-like, irregular distension of the syrinx (bulla syringealis or tympaniform bulla, Fig 3) that serves as a resonating body that increases in size with age.
A cartilaginous structure called the tympanum, or drum, forms the base for insertion of tympaniform membranes capable of vibrating.