Definition of spine

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Spine (n.) A rigid and sharp projection upon any part of an animal.

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Acanthocephala :: Acanthocephala (n. pl.) A group of intestinal worms, having the proboscis armed with recurved spines..
Enopla :: Enopla (n. pl.) One of the orders of Nemertina, characterized by the presence of a peculiar armature of spines or plates in the proboscis..
Acanthophorous :: Acanthophorous (a.) Spine-bearing.
Spine :: Spine (n.) A sharp appendage to any of a plant; a thorn.
Seta :: Seta (n.) One of the spinelike feathers at the base of the bill of certain birds.
Thorny :: Thorny (superl.) Full of thorns or spines; rough with thorns; spiny; as, a thorny wood; a thorny tree; a thorny crown..
Sting :: Sting (v. t.) Any sharp organ of offense and defense, especially when connected with a poison gland, and adapted to inflict a wound by piercing; as the caudal sting of a scorpion. The sting of a bee or wasp is a modified ovipositor. The caudal sting, or spine, of a sting ray is a modified dorsal fin ray. The term is sometimes applied to the fang of a serpent. See Illust. of Scorpion..
Echinulate :: Echinulate (a.) Set with small spines or prickles.
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..
Interneural :: Interneural (n.) An interneural spine or cartilage.
Spinet :: Spinet (n.) A keyed instrument of music resembling a harpsichord, but smaller, with one string of brass or steel wire to each note, sounded by means of leather or quill plectrums or jacks. It was formerly much used..
Quill :: Quill (n.) A spine of the hedgehog or porcupine.
Porcupine :: Porcupine (n.) Any species of Erethizon and related genera, native of America. They are related to the true porcupines, but have shorter spines, and are arboreal in their habits. The Canada porcupine (Erethizon dorsatus) is a well known species..
Gahnite :: Gahnite (n.) Zinc spinel; automolite.
Spine :: Spine (n.) The backbone, or spinal column, of an animal; -- so called from the projecting processes upon the vertebrae..
Spineted :: Spine-tailed (a.) Having the tail quills ending in sharp, naked tips..
Mesoscapula :: Mesoscapula (n.) A process from the middle of the scapula in some animals; the spine of the scapula.
Chaetognatha :: Chaetognatha (n. pl.) An order of free-swimming marine worms, of which the genus Sagitta is the type. They have groups of curved spines on each side of the head..
Paxwax :: Paxwax (n.) The strong ligament of the back of the neck in quadrupeds. It connects the back of the skull with dorsal spines of the cervical vertebrae, and helps to support the head. Called also paxywaxy and packwax..
Jewstone :: Jewstone (n.) A large clavate spine of a fossil sea urchin.
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