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lacrimal sac

noun, Anatomy
1.
the dilated upper portion of the nasolacrimal duct that receives tears from the lacrimal ducts.
Origin
1770-1780
1770-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for lacrimal sac
  • The mucous lining of the lacrimal sac and nasolacrimal duct is covered with columnar epithelium, which in places is ciliated.
lacrimal sac in Medicine

lacrimal sac n.
The upper portion of the nasolacrimal duct into which the two lacrimal ducts empty. Also called dacryocyst, tear sac.

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