Acanthopterygii :: Acanthopterygii (n. pl.) An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch..
Acanthopterygious :: Acanthopterygious (a.) Having fins in which the rays are hard and spinelike; spiny-finned.
Acanthus :: Acanthus (n.) A genus of herbaceous prickly plants, found in the south of Europe, Asia Minor, and India; bear's-breech..
Acanthus :: Acanthus (n.) An ornament resembling the foliage or leaves of the acanthus (Acanthus spinosus); -- used in the capitals of the Corinthian and Composite orders.
Anacanthous :: Anacanthous (a.) Spineless, as certain fishes..
Anacanths :: Anacanths (n. pl.) A group of teleostean fishes destitute of spiny fin-rays, as the cod..
Coelacanth :: Coelacanth (a.) Having hollow spines, as some ganoid fishes..
Dracanth :: Dracanth (n.) A kind of gum; -- called also gum tragacanth, or tragacanth. See Tragacanth..
Gyracanthus :: Gyracanthus (n.) A genus of fossil fishes, found in Devonian and carboniferous strata; -- so named from their round, sculptured spines..
Heteracanth :: Heteracanth (a.) Having the spines of the dorsal fin unsymmetrical, or thickened alternately on the right and left sides..