cloven hoof clo·ven·hoof uncommon noun 1. the mark of Satan Synonymscloven hoofcloven foot 2. a hoof divided into two parts at its distal extremity (as of ruminants or swine) Synonymscloven footcloven hoof Related words Broader terms hoofmark WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.