n. A clupeoid fish of the genus Alosa, in which there are no palatal teeth and the cheeks are deeper than they are long.n. In the Ohio valley, a clupeoid, Pomolobus chrysochloris, with persistent and well-developed teeth in the premaxillaries and front of the lower jaw.n. With a qualifying word, one of several other fishes. See gizzard-shad, and phrases below.n. A Middle English past participle of shed.