Franz Anton Mesmer fran·zan·ton·mesmer uncommon noun 1. Austrian physician who tried to treat diseases with a form of hypnotism (1734-1815) SynonymsMesmerFranz Anton MesmerFriedrich Anton Mesmer Related words Word family mesmerizemesmerise Broader terms doctor WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.