Jersey elm jer·seyelm uncommon noun 1. a variety of the English elm with erect branches and broader leaves SynonymsJersey elmguernsey elmwheately elmUlmus sarniensisUlmus campestris sarniensisUlmus campestris wheatleyi Related words Broader terms elm Parts Ulmus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.