Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of vertebra is as below...

Spicule :: Spicule (n.) Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria..

Peristome :: Peristome (n.) The membrane surrounding the mouth of an invertebrate animal.

Vent :: Vent (n.) The anal opening of certain invertebrates and fishes; also, the external cloacal opening of reptiles, birds, amphibians, and many fishes..

Pharynx :: Pharynx (n.) The part of the alimentary canal between the cavity of the mouth and the esophagus. It has one or two external openings through the nose in the higher vertebrates, and lateral branchial openings in fishes and some amphibias..

Diphycercal :: Diphycercal (a.) Having the tail fin divided into two equal parts by the notochord, or end of the vertebral column; protocercal. See Protocercal..

Ginglymodi :: Ginglymodi (n.) An order of ganoid fishes, including the modern gar pikes and many allied fossil forms. They have rhombic, ganoid scales, a heterocercal tail, paired fins without an axis, fulcra on the fins, and a bony skeleton, with the vertebrae convex in front and concave behind, forming a ball and socket joint. See Ganoidel..

Axis :: Axis (n.) The second vertebra of the neck, or vertebra dentata..

Hypoglossal :: Hypoglossal (a.) Under the tongue; -- applied esp., in the higher vertebrates, to the twelfth or last pair of cranial nerves, which are distributed to the base of the tongue..

Whettlebones :: Whettlebones (n. pl.) The vertebrae of the back.

Uterus :: Uterus (n.) A receptacle, or pouch, connected with the oviducts of many invertebrates in which the eggs are retained until they hatch or until the embryos develop more or less. See Illust. of Hermaphrodite in Append..

Suprastapedial :: Supraspinous (a.) Situated above a spine or spines; especially, situated above, or on the dorsal side of, the neural spines of the vertebral column, or above, or in front of, the spine of the scapula..

Gizzard :: Gizzard (n.) A thick muscular stomach found in many invertebrate animals.

Mesonephros :: Mesonephros (n.) The middle one of the three pairs of embryonic renal organs developed in most vertebrates; the Wolffian body.

Testa :: Testa (n.) The external hard or firm covering of many invertebrate animals.

Hyperapophysis :: Hyperapophysis (n.) A lateral and backward-projecting process on the dorsal side of a vertebra.

Hematocrya :: Hematocrya (n. pl.) The cold-blooded vertebrates, that is, all but the mammals and birds; -- the antithesis to Hematotherma..

Haematocrya :: Haematocrya (n. pl.) The cold-blooded vertebrates. Same as Hematocrya.

Enteropneusta :: Enteropneusta (n. pl.) A group of wormlike invertebrates having, along the sides of the body, branchial openings for the branchial sacs, which are formed by diverticula of the alimentary canal. Balanoglossus is the only known genus. See Illustration in Appendix..

Somite :: Somite (n.) One of the actual or ideal serial segments of which an animal, esp. an articulate or vertebrate, is is composed; somatome; metamere..

Neuropodous :: Neuropodous (a.) Having the limbs on, or directed toward, the neural side, as in most invertebrates; -- opposed to haemapodous..

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