Home › Words › P › partitionistpartitionistpartitionist means A political partisan who favours geopolitical partitioning.EtymologyFrom partition + -ist.nounA political partisan who favours geopolitical partitioning.A political partisan who favours the partition of the province of Quebec with the western, southern portions and Montreal forming a separate province or country from the rest of Quebec.Definitions & examples from Wiktionary (CC BY-SA 3.0).