Definition of "tympanic" [tym•pan•ic]

• Relating to or resembling a drum. (adjective)
• Anatomy Of or relating to the middle ear or eardrum. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "On the other side of the tympanum is a small air-filled space called the tympanic cavity."
• "It is called the tympanic antrum, and must be distinguished from the mastoid cells, though it communicates with them."
• "The aperture, surrounded by the folds of the external ear, leads by a canal towards a cavity called the tympanic cavity, which cavity is shut off from the exterior by the tympanic membrane (or drum of the ear), which stretches across the canal at a considerable distance from its external aperture."