spiny-finned fish spi·ny·fin·nedfish uncommon noun 1. a teleost fish with fins that are supported by sharp inflexible rays Synonymsspiny-finned fishacanthopterygian Antonymssoft-finned fish Related words Broader terms teleost fish Narrower terms squirrelfishanomalopsflashlight fishdoryboarfishsticklebackbatfish Parts Acanthopterygii WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
