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

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


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  • Lacrimal vein

    lacrimal vein n. A vein that drains the lacrimal gland, and empties into the superior ophthalmic vein.

  • Lacrimation

    [lak-ruh-mey-shuh n] /ˌlæk rəˈmeɪ ʃən/ noun 1. the secretion of tears, especially in abnormal abundance. /ˌlækrɪˈmeɪʃən/ noun 1. the secretion of tears lacrimation lac·ri·ma·tion or lach·ry·ma·tion (lāk’rə-mā’shən) n. The secretion of tears, especially in excess.

  • Lacrimator

    [lak-ruh-mey-ter] /ˈlæk rəˌmeɪ tər/ noun 1. . [lak-ruh-mey-ter] /ˈlæk rəˌmeɪ tər/ noun 1. a chemical substance that causes the shedding of tears, as tear gas. /ˈlækrɪˌmeɪtə/ noun 1. a substance causing an increase in the flow of tears See tear gas /ˈlækrɪˌmeɪtə/ noun 1. a variant spelling of lacrimator lacrimator lac·ri·ma·tor (lāk’rə-mā’tər) n. Variant of […]

  • Lacrimatory

    [lak-ruh-muh-tawr-ee, -tohr-ee] /ˈlæk rə məˌtɔr i, -ˌtoʊr i/ adjective, noun, plural lacrimatories. 1. . [lak-ruh-muh-tawr-ee, -tohr-ee] /ˈlæk rə məˌtɔr i, -ˌtoʊr i/ adjective 1. of, relating to, or causing the shedding of tears. noun, plural lachrymatories. 2. Also called lachrymal. a small, narrow-necked vase found in ancient Roman tombs, formerly thought to have been used […]

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