View your list of saved words. (You can log in using Facebook.)
Definition of LACRIMAL SAC
: the dilated oval upper end of the nasolacrimal duct that is situated in a groove formed by the lacrimal bone and the frontal process of the maxilla, is closed at its upper end, and receives the lacrimal ducts
Seen & Heard
What made you want to look up lacrimal sac? Please tell us where you read or heard it (including the quote, if possible).