Entry 1 sense Webster, 1913 Gadoid · Ga·doid · IPA /ˈɡeɪdɔɪd/ 01 a. Of or pertaining to the family of fishes (Gadidæ) which includes the cod, haddock, and hake. 1. Of or pertaining to the family of fishes (Gadidæ) which includes the cod, haddock, and hake.(Zool.)