cebus n type genus of the Cebidae n an important seaport on the island of Cebu in the Philippines n one of the Visayan islands of the central Philippines; important for its fine harbor Usage(s) A cebus monkey in the San Diego zoo, says Beach, showed rational business aptitude by offering sticks or pebbles to visitors who were rich in peanuts or candy. Synonym(s) Cebus genus Cebus Cebu Cebu City