gomitoli

[gō-mĭtə-lē]
pl.n.
  1. Intricately coiled capillary vessels present largely in the upper infundibular stem of the stalk of the pituitary gland and comprising a portion of the pituitary portal circulation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.