Mammoth Uncensored Word List:
178 words ending with an, 11 letters long

abecedarian academician acoustician aircraftman alcyonarian anchorwoman antiquarian antithalian arthropodan assemblyman asteroidean breatharian bushelwoman businessman callipygean callipygian calypsonian camerawoman campestrian carrageenan caryatidean centenarian centimorgan ceratopsian chiropteran churchwoman clergywoman clostridian coleopteran collembolan congressman coprophagan cordilleran cornucopian cosmetician counterplan craftswoman crocodilian crossbowman ctenophoran deliveryman dermapteran dinosaurian discophoran draftswoman draughtsman egalitarian electrician eleutherian enneandrian esthetician fisherwoman flexitarian foremastman frontierman fustilarian fustilirian gallinacean gastropodan gentilitian gentlewoman glasnostian gregarinian guildswoman hardwareman heteroscian heterousian hexaplarian holothurian homoiousian humgruffian hyperborean hyperdorian hyperlydian hypoaeolian hypospadian hyracoidean icosandrian infantryman infieldsman infirmarian lacertilian libertarian lilliputian logistician luckengowan madreporian madrigalian magnetician malapropian manganesian mechanician megatherian merchantman metatherian millenarian milliradian monocardian monomyarian myrmidonian mythologian necessarian needlewoman neuropteran nonmagician nonmusician nonpartisan nonpartizan nonsuburban nullifidian ombudswoman orthopteran outdoorsman pandemonian panomphaean patrolwoman penetralian pentagynian pentandrian pericardian peripeteian philologian phlogistian phonetician pinnipedian plantswoman plecopteran plumularian policewoman polyurethan pornotopian postexilian prefreshman preterhuman procrustean proletarian purgatorian radiolarian rastafarian refectorian rhetorician sabbatarian sagittarian saturnalian saurischian sauropsidan scincoidian semiotician sertularian sigillarian silvestrian spinsterian spokeswoman sportswoman springclean stateswoman stelleridan subtacksman sylvestrian syndyasmian synthespian tetragynian tetrandrian tetrapteran trachearian tradeswoman transandean trencherman tribeswoman tribunician tribunitian trinitarian unchristian unsectarian utilitarian washerwoman yachtswoman zoantharian