sentinel gland

[sĕntə-nəl]

n.

A single, enlarged lymph node in the omentum that may indicate an ulcer opposite to it in the greater or lesser curvature of the stomach.

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