Lacrimal duct is a term used to define the channel that allows the flow of tears from the eyes to the nasal cavity. But this medical term has synonyms that are commonly used by physicians and other medical professionals. Some of these include "tear duct", "lacrimal passage", "lacrimal canal", and "nasolacrimal canal". These different words help to describe the same body part and function. The use of synonyms helps prevent confusion and aids communication between medical personnel and patients. Understanding the various synonyms for lacrimal duct is necessary for proper diagnosis and treatment of eye-related health issues.