Mammoth Uncensored Word List:
69 words ending with ar, 12 letters long

antimacassar appendicular biomolecular cocurricular crystalclear diverticular epicuticular extralobular extranuclear extratubular gubernacular infundibular interlaminar interlobular internuclear interstellar intertubular intralaminar intranuclear macronuclear microtubular monocellular multiangular multilaminar multilobular multilocular multinodular multinuclear myofibrillar nonarticular noncollinear nonglandular nonirregular nonmolecular nonvesicular overfamiliar paracellular pericellular peripatellar perivascular petrobasilar photonuclear piezonuclear plurilocular postalveolar preauricular preconciliar pseudobezoar pseudoscalar quadrangular receptacular renovascular sarcotubular semicircular semiglobular subauricular submolecular subopercular suborbicular subumbrellar supernacular supranuclear tabernacular tibiofibular transjugular trichobezoar trimolecular tubuloacinar unimolecular