Pronunciation: (gwelf),[key] —n. 1. a member of the political party in medieval Italy and Germany that supported the sovereignty of the papacy against the German emperors: opposed to the Ghibellines.
2. a member of a secret society in Italy in the early 19th century that opposed foreign rulers and reactionary ideas. Also,Guelf.
Pronunciation: (gwelf),[key] —n. a city in SE Ontario, in S Canada. 71,207.