Noun

• S: (n) middle ear, tympanic cavity, tympanum (the main cavity of the ear; between the eardrum and the inner ear)
• S: (n) eardrum, tympanum, tympanic membrane, myringa (the membrane in the ear that vibrates to sound)
• S: (n) kettle, kettledrum, tympanum, tympani, timpani (a large hemispherical brass or copper percussion instrument with a drumhead that can be tuned by adjusting the tension on it)
• direct hypernym / inherited hypernym / sister term
• S: (n) percussion instrument, percussive instrument (a musical instrument in which the sound is produced by one object striking another)
• S: (n) musical instrument, instrument (any of various devices or contrivances that can be used to produce musical tones or sounds)
• S: (n) device (an instrumentality invented for a particular purpose) "the device is small enough to wear on your wrist"; "a device intended to conserve water"
• S: (n) instrumentality, instrumentation (an artifact (or system of artifacts) that is instrumental in accomplishing some end)
• S: (n) artifact, artefact (a man-made object taken as a whole)
• S: (n) whole, unit (an assemblage of parts that is regarded as a single entity) "how big is that part compared to the whole?"; "the team is a unit"
• S: (n) object, physical object (a tangible and visible entity; an entity that can cast a shadow) "it was full of rackets, balls and other objects"
• S: (n) physical entity (an entity that has physical existence)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• derivationally related form