gadoidEnglishOxford Dictionary of Englishgadoid /ˈɡeɪdɔɪd , ˈɡadɔɪd / ▸ noun Zoology a bony fish of an order (Gadiformes) that comprises the cods, hakes, and their relatives. ▸ adjective relating to or denoting the gadoids. – ORIGIN mid 19th century: from modern Latin gadus (from Greek gados ‘cod’) + -oid.