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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.

Spiny-winged.

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

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.

One of the needlelike or bristlelike spines or prickles of some animals and plants; also, a needlelike crystal.

A cone-shaped piece of wood on the point of the spindle above the vane, on the mast-head.

Having straight projecting spines.

In a state of gasping. Coleridge.

Of or pertaining to ambulacra; avenuelike; as, the ambulacral ossicles, plates, spines, and suckers of echinoderms.

hromatic figure, formed in mitotic cell-division, consisting of two asters connected by a spindle-shaped bundle of rodlike fibers diverging from each aster, and called the spindle.

Clasping a support; as, amplectant tendrils. Gray.

Clasping or embracing a stem, as the base of some leaves. Gray.

Wanting the spinal cord.

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