Mammoth Uncensored Word List:
80 words ending with cs, 15 letters long

alektorophobics allodoxaphobics anatidaephobics antaphrodisiacs anthropophobics antiallergenics antiarrhythmics antihelminthics antihistaminics antiodontalgics antiphlogistics antisyphilitics antithrombotics archgenethliacs bacteriophobics batrachophobics bioastronautics brachycephalics caligynephobics catoptrophobics characteristics chiroptophobics claustrophobics cleithrophobics dermatoglyphics eisoptrophobics elastomechanics electrodynamics electrokinetics electrotechnics electrothermics flagellomaniacs flavourdynamics galactopoietics galvanoplastics geodemographics hallucinogenics homichlophobics lithochromatics lithonthryptics maieusiophobics metalinguistics metamathematics molysomophobics morphinomaniacs morphophonemics noncharismatics nosocomephobics optoelectronics organometallics osteoarthritics pantopragmatics paralinguistics parasitophobics parthenophobics pediculophobics pharmacophobics phronemophobics phthiriophobics phthisiophobics pneumatophobics pneumoconiotics pocrescophobics politicophobics porphyrophobics proceleusmatics psychoacoustics psychoneurotics samhainophobics sarmassophobics sinistrophobics spermatophobics submetacentrics symmetrophobics tachyphylactics thalassophobics traumatophobics trichinophobics venustraphobics walloonophobics