nountympănĭumTYMPANIVM☆ KeepMeaninga precious stone shaped like a tambourineLewis & Short 1879ModernAs printed, 1879TYMPANIUMLEWIS & SHORTTYMPANIUMtympănĭum, ii, n., = τυμπάνιον I. a precious stone shaped like a tambourine, Plin. 9, 35, 54, § 109; Dig. 34, 2, 32, § 9.Read the whole entry