lachrymal duct
Definition
Noun: A small, narrow tube or channel that transports tears from the lacrimal gland (which produces tears) to the surface of the eye or into the nasal cavity.
Usage
The term "lachrymal duct" is used specifically in anatomical and medical contexts to describe the part of the tear drainage system. * The lachrymal duct can become blocked, leading to excessive tearing. * A probe may be used to clear an obstructed lachrymal duct.
Advanced Usage
- The term is often part of the phrase "nasolacrimal duct," which is the specific duct that drains tears from the eye into the nose.
- It is frequently discussed in relation to conditions like dacryocystitis (infection of the tear sac) or congenital duct obstruction in infants.
Variants and Related Words
- Lacrimal duct: A more common modern spelling variant. "Lachrymal" is an older, Latin-derived spelling, while "lacrimal" is the standard contemporary form in medical terminology.
- Nasolacrimal duct (n): The specific duct that carries tears from the lacrimal sac into the nasal cavity.
- Tear duct (n): A common, non-technical synonym for lachrymal/lacrimal duct.
Synonyms
- Tear duct
- Lacrimal duct
Notes on Different Meanings
The term "lachrymal duct" has a single, specific anatomical meaning. It is not used idiomatically or in non-literal contexts.
Noun
-
any of several small ducts that carry tears from the lacrimal glands
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