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lacrimal sac

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noun Anatomy.

the dilated upper portion of the nasolacrimal duct that receives tears from the lacrimal ducts.

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Origin of lacrimal sac

First recorded in 1770–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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Medical definitions for lacrimal sac

lacrimal sac

n.

The upper portion of the nasolacrimal duct into which the two lacrimal ducts empty.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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