limen insulae

[ĭnsə-lē′]
n.
  1. The transitional band located between the anterior portion of the gray matter of the island of Reil and the posterior perforated substance, formed by a narrow strip of olfactory cortex.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.