GADOID Meaning of GADOID in English I. ˈgāˌdȯid, ˈgaˌ- adjectiveEtymology: New Latin Gadus, genus name + English -oid : resembling or relating to the Gadidae II. noun( -s ) : a gadoid fish Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012