microtia

n.

"abnormal smallness of the ear," 1881, Medical Latin, from micro- + Greek ous (genitive otos) "ear" (see ear (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper

microtia in Medicine

microtia

[mī-krōshē-ə, -shə]
n.
  1. Abnormal smallness of the auricle of the ear.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.