lactiferous sinus

n.

A circumscribed spindle-shaped dilation of the lactiferous duct just before it enters the nipple of the breast.

Nearby words

  1. leadsman,
  2. leadville,
  3. leadwort,
  4. leadwort family,
  5. leady,
  6. leaf beetle,
  7. leaf blight,
  8. leaf blotch,
  9. leaf bud,
  10. leaf butterfly


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