Definition of spine

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Spine (n.) A sharp appendage to any of a plant; a thorn.

Lern More About Spine

Swordfish :: Swordfish (n.) A very large oceanic fish (Xiphias gladius), the only representative of the family Xiphiidae. It is highly valued as a food fish. The bones of the upper jaw are consolidated, and form a long, rigid, swordlike beak; the dorsal fin is high and without distinct spines; the ventral fins are absent. The adult is destitute of teeth. It becomes sixteen feet or more long..
Dermoneural :: Dermoneural (a.) Pertaining to, or in relation with, both dermal and neural structures; as, the dermoneural spines or dorsal fin rays of fishes..
Clarichord :: Clarichord (n.) A musical instrument, formerly in use, in form of a spinet; -- called also manichord and clavichord..
Postscapula :: Postscapula (n.) The part of the scapula behind or below the spine, or mesoscapula..
Sculpin :: Sculpin (n.) Any one of numerous species of marine cottoid fishes of the genus Cottus, or Acanthocottus, having a large head armed with sharp spines, and a broad mouth. They are generally mottled with yellow, brown, and black. Several species are found on the Atlantic coasts of Europe and America..
Homacanth :: Homacanth (a.) Having the dorsal fin spines symmetrical, and in the same line; -- said of certain fishes..
Turreted :: Turreted (a.) Furnished with a turret or turrets; specifically (Zool.), having the whorls somewhat flattened on the upper side and often ornamented by spines or tubercles; -- said of certain spiral shells..
Interneural :: Interneural (n.) An interneural spine or cartilage.
Aborted :: Aborted (a.) Rendered abortive or sterile; undeveloped; checked in normal development at a very early stage; as, spines are aborted branches..
Spindle :: Spinate (a.) Bearing a spine; spiniform.
Aplacophora :: Aplacophora (n. pl.) A division of Amphineura in which the body is naked or covered with slender spines or setae, but is without shelly plates..
Spiniform :: Spiniferous (a.) Producing spines; bearing thorns or spines; thorny; spiny.
Hedgehog :: Hedgehog (n.) A species of Medicago (M. intertexta), the pods of which are armed with short spines; -- popularly so called..
Spinulescent :: Spinule (n.) A minute spine.
Paxillus :: Paxillus (n.) One of a peculiar kind of spines covering the surface of certain starfishes. They are pillarlike, with a flattened summit which is covered with minute spinules or granules. See Illustration in Appendix..
Stickler :: Stickleback (v. t.) Any one of numerous species of small fishes of the genus Gasterosteus and allied genera. The back is armed with two or more sharp spines. They inhabit both salt and brackish water, and construct curious nests. Called also sticklebag, sharpling, and prickleback..
Actinophorous :: Actinophorous (a.) Having straight projecting spines.
Spinel :: Spinelle (n.) A mineral occuring in octahedrons of great hardness and various colors, as red, green, blue, brown, and black, the red variety being the gem spinel ruby. It consist essentially of alumina and magnesia, but commonly contains iron and sometimes also chromium..
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..
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