Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to lacrimal groove: nasolacrimal groove
the groove in the nasal surface of the maxilla that, together with the lacrimal bone, forms the fossa for the lacrimal sac.
Synonym(s): sulcus lacrimalis [TA]
A vertical groove along the upper front edge of the medial wall of the orbit. The groove, formed by matching furrows on the maxillary and lacrimal bones, holds the lacrimal sac and leads into the lacrimal canal.
See also: groove