Mammoth Uncensored Word List:
25 words ending with ac, 11 letters long

algolagniac anglomaniac anthomaniac aphrodisiac clinomaniac coprolaliac dipsomaniac endocardiac enosimaniac ergophobiac erotomaniac hemophiliac hydromaniac mythomaniac necromaniac pandemoniac paraphiliac pedophiliac pericardiac phagomaniac plutomaniac russomaniac theophobiac toxiphobiac zygocardiac