Lorentz lo·rentz US/ˈlɔrɪnts/ uncommon noun 1. Dutch physicist noted for work on electromagnetic theory (1853-1928) SynonymsHendrik Antoon Lorentz Related words Word family Lorentz force Broader terms physicist WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.