- a membranous canal extending from the lacrimal sac to the nasal cavity, through which tears are discharged into the nose.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- The passage leading downward from the lacrimal sac on each side of the nose, through which tears are conducted into the nasal cavity.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.