Lacunal
Pronunciation : La*cu"nal, La*cu"nar
Part of Speech : a.
Definition : Defn: Pertaining to, or having, lacun?; as, a lacunar circulation.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder