cyprinid adjective 1noun 1forms 1 adjective1 •Of, pertaining to, or being the Cyprinidae family of fish that includes barbs, carps, and minnows. noun1 •Any fish of this family.Romanichthys, commonly known as the Romanian darter, is a very primitive cyprinid which has two dorsal fins and a covering of rough scales. — 2018 formscyprinids