Lacunar definitions Webster's 1828 Dictionary LAC'UNAR, n. [L.] An ... see lacuna Webster's 1913 Dictionary Lacunal La*cu"nal, Lacunar La*cu"nar, a. Pertaining to, or having, lacun[ae]; as, a lacunar circulation. Webster's 1913 Dictionary Lacunar La*cu"nar, n.; pl. E. Lacunars, L. Lacunaria. [L ...
... a small cavity, pit, or discontinuity in an anatomical structure • lacunar also lacunate adjective Oxford Reference Dictionary n. (pl. lacunae or ... a cavity or depression, esp. in bone. Derivatives: lacunal adj. lacunar adj. lacunary adj. lacunose adj. Etymology: L, = pool, f. lacus ...