temporal bone(redirected from tympanomastoid fissure)
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either of two compound bones forming part of the sides and base of the skull: they surround the organs of hearing
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
temporal bone[′tem·prəl ‚bōn]
The bone forming a portion of the lateral aspect of the skull and part of the base of the cranium in vertebrates.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.