- (a.) Pertaining to or having, lacunae; as, a lacunar circulation.
- (n.) One of the sunken panels in such a ceiling.
- (n.) The ceiling or under surface of any part, especially when it consists of compartments, sunk or hollowed without spaces or bands between the panels.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). lacunar. Retrieved September 22, 2026, from http://smartdefine.org/lacunar/definitions/2026173 |
| Chicago | Webster's. 2011. "lacunar" http://smartdefine.org/lacunar/definitions/2026173 (accessed September 22, 2026). |
| Harvard | Webster's 2011, lacunar, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/lacunar/definitions/2026173>. |
| MLA | Webster's. "lacunar" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/lacunar/definitions/2026173> |