WordReference Random House Unabridged Dictionary of American English © 2025
la•cu•nar
(lə kyo̅o̅′nər),USA pronunciation n., pl. la•cu•nars, lac•u•nar•i•a (lak′yə nâr′ē ə),USA pronunciation adj.
n.
adj.
n.
- Architecture
- a coffered vault, ceiling, or soffit.
- coffer (def. 4).
adj.
- Anatomy, Botanylacunal.
- lacun(a) + -ar1 1690–1700
'lacunar' also found in these entries (note: many are not synonyms or translations):