Mammoth Uncensored Word List:
174 words ending with ac

abdominocardiac ablutomaniac aboulomaniac agoraphobiac algolagniac almanac ammoniac amnesiac amtrac anaphrodisiac anglomaniac anglophobiac antaphrodisiac anthomaniac antiaphrodisiac aphasiac aphrodisiac archgenethliac arithmomaniac armagnac autovac bacchiac bibliomaniac bivouac bobac bradycardiac brainiac bricabrac bulimiac cadillac caduac caimac calpac cardiac celeriac celiac champac claustrophobiac cleptomaniac clinomaniac clitoromaniac cnidosac coeliac cognac coprolaliac coprophiliac corsac coulibiac cyclothymiac demoniac demonomaniac dextrocardiac dionysiac diplocardiac dipsomaniac dochmiac doromaniac drac dysthymiac egomaniac elegiac endocardiac eniac enosimaniac epicardiac ergomaniac ergophobiac erotomaniac etheromaniac extracardiac extrapericardiac finnac flagellomaniac galyac gamomaniac genethliac guaiac haemophiliac hebephreniac heliac hemophiliac hydromaniac hypochondriac ileac iliac insomniac intracardiac ipecac kalpac kleptolagniac kleptomaniac lilac linac maniac medevac medivac megalomaniac melancholiac melomaniac monomaniac morphinomaniac muntjac mythomaniac necromaniac necrophiliac negrophobiac neophiliac neurastheniac noncardiac nymphomaniac ochlophobiac oomiac opsomaniac orchidomaniac orgiac oshac ovisac paedophiliac pandemoniac paradisiac paranoiac paraphiliac paroemiac pedophiliac pericardiac phagomaniac phobiac phrenesiac plutomaniac pontianac poonac pyromaniac retrophiliac ricrac russomaniac russophobiac sac sacroiliac sandarac sazerac scopophiliac scoriac serac shellac shoepac simoniac sitomaniac sumac symposiac tacamahac tachycardiac tambac tarmac technomaniac theomaniac theophobiac theriac tictac tietac timbromaniac tombac toxiphobiac triac trichotillomaniac trictrac umiac waac windac xenomaniac yashmac yolksac zodiac zoomaniac zygocardiac