"trefoil" in German trefoil Dreipass Kleeblatt Detailed translations for "trefoil" trefoil 1. art, ornament trefoil der Dreipass{masculine} 2. other trefoil(also: clover leaf, cloverleaf, shamrock) das Kleeblatt{neuter} English synonyms for "trefoil" trefoil {n} clover medic medick