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Same as Acanthus.

A prickle.

Of, pertaining to, or resembling, the family of plants of which the acanthus is the type.

Of, pertaining to, or resembling, the plant acanthus.

Having the fruit covered with spines.

A group of intestinal worms, having the proboscis armed with recurved spines.

Having a spiny head, as one of the Acanthocephala.

Spine-bearing. Gray.

Having spinous petioles.

A group of teleostean fishes having spiny fins. See Acanthopterygii.

Acanthopterygious.

Belonging to the order of fishes having spinose fins, as the perch. -- n.

An order of fishes having some of the rays of the dorsal, ventral, and anal fins unarticulated and spinelike, as the perch.

Having fins in which the rays are hard and spinelike; spiny- finned.

An ornament resembling the foliage or leaves of the acanthus (Acanthus spinosus); -- used in the capitals of the Corinthian and Composite orders.

A group of teleostean fishes destitute of spiny fin-rays, as the cod.

Spineless, as certain fishes.

Having hollow spines, as some ganoid fishes.

A kind of gum; -- called also gum tragacanth, or tragacanth. See Tragacanth.

A genus of fossil fishes, found in Devonian and carboniferous strata; -- so named from their round, sculptured spines.