Mammoth Uncensored Word List:
36 words ending with al, 19 letters long

anatomopathological archaeoastronomical astrophotographical clinicopathological craniomaxillofacial dendrochronological electromyographical extraconstitutional facioscapulohumeral gastroenterological glottochronological hydrometeorological immunohematological immunohistochemical interdenominational interjurisdictional interorganizational mandibulopharyngeal metacarpophalangeal micrometeorological microradiographical multidenominational noncorticosteroidal nonextraterrestrial nongastrointestinal nonrepresentational pancreaticoduodenal paraliageosynclinal postfertilizational posttranscriptional pseudophilosophical psychoimmunological psychophysiological radiopharmaceutical reticuloendothelial stereomicroscopical