Definition of "lacunar" [la•cu•nar]

• A ceiling constructed with recessed panels. (noun)
• A recessed panel in such a ceiling. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The portion which is reflected from the inguinal ligament at the pubic tubercle is attached to the pectineal line and is called the lacunar ligament."
• "In addition to the deterioration of the landscape, the decline in the mangrove forest has created effects throughout the lacunar system such as the loss of habitats for a large number of species of fish, birds, and bentonic organisms."
• "This platform is now submerged and gradually being covered by recent lacunar sediments."