/meg'euh loh may"nee ak'/ , n.
1. a person afflicted with megalomania.
adj.
2. Also, megalomaniacal /meg'euh loh meuh nuy"euh keuhl/ , megalomanic /meg'euh loh man"ik/ . of, pertaining to, or suggesting megalomania or a person who is afflicted with it.
[ 1885-90; MEGALO- + MANIAC ]