Samuel Morse sa·muel·morse uncommon noun 1. United States portrait painter who patented the telegraph and developed the Morse code (1791-1872) SynonymsMorseSamuel MorseSamuel F. B. MorseSamuel Finley Breese Morse Related words Broader terms inventorpainter WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.