acanthopterygian(n = noun.animal) spiny-finned fish - a teleost fish with fins that are supported by sharp inflexible rays;
is a kind of teleost, teleost fish, teleostan
is a member of acanthopterygii, superorder acanthopterygii
has particulars: squirrelfish, anomalops, flashlight fish, flashlight fish, photoblepharon palpebratus, dory, boarfish, capros aper, boarfish, prickleback, stickleback, batfish, allmouth, angler, angler fish, anglerfish, goosefish, lophius americanus, lotte, monkfish, opsanus tau, toadfish, frogfish, sargassum fish, percoid, percoid fish, percoidean, remora, suckerfish, sucking fish, silverside, silversides, barracuda, launce, sand eel, sand lance, sand launce, dragonet, scorpaenoid, scorpaenoid fish, plectognath, plectognath fish, flatfish

   Belonging to the order of fishes having spinose fins, as the perch. [1913 Webster]