chylomediastinum

chylomediastinum [kī′lō-mē′dē-ə-stī′nəm] n.

1. An abnormal presence of chyle in the mediastinum.

The American Heritage® Stedman’s Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.