| SDH | serine dehydratase; sorbitol dehydrogenase; spinal dorsal horn; subdural hematoma; succinate dehydro... |
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| anterior horn cells | Motor neurons in the anterior (ventral) horn of the spinal cord which project to skeletal muscles. (12 Dec 1998) |
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| apex of the posterior horn | The pointed extremity of each posterior gray column or cornu of the spinal cord. Synonym: apex cornus posterioris, caput cornus, tip of posterior horn. (05 Mar 2000) |
| buck's-horn | <botany> A plant with leaves branched somewhat like a buck's horn (Plantago Coronopus); also, Lobelia coronopifolia. Source: Websters Dictionary (01 Mar 1998) |
| bulb of posterior horn of lateral ventricle of brain | Bulb of posterior horn of lateral ventricle of the brain; a curved elevation on the inner wall of the posterior horn produced by the fibres of the forceps major of the corpus callosum as they bend backward into the occipital lobe. Synonym: bulb of posterior horn of lateral ventricle of brain. (05 Mar 2000) |
| vein of posterior horn | A small vein draining the surface region of the posterior horn of the lateral ventricle; it is a tributary to the great cerebral vein. Synonym: vein of posterior horn. (05 Mar 2000) |
| ventral horn | The anterior or frontal division of the lateral ventricle of the brain, extending forward from Monro's interventricular foramen. See: lateral ventricle. (05 Mar 2000) |
| greater horn of hyoid bone | The larger and more lateral of the two processes on either side of the hyoid bone. Synonym: cornu majus ossis hyoidei. (05 Mar 2000) |
| cicatricial horn | A keratinous horn projecting outward from a scar. (05 Mar 2000) |
| coccygeal horn | Two processes that project upward from the dorsum of the base of the coccyx to articulate with the sacral cornua. Synonym: cornua coccygealia, coccygeal horn. (05 Mar 2000) |
| warty horn | A protruding keratotic growth of the skin; the base may show changes of actinic keratosis or carcinoma. Synonym: cornu cutaneum, warty horn. (05 Mar 2000) |
| posterior horn | The posterior or occipital division of the lateral ventricle of the brain, extending backward into the occipital lobe; the posterior gray column of the spinal cord as appearing in cross section. Synonym: cornu posterius ventriculi lateralis, cornu posterius, cornua of spinal cord, occipital horn. (05 Mar 2000) |
| cutaneous horn | A protruding keratotic growth of the skin; the base may show changes of actinic keratosis or carcinoma. Synonym: cornu cutaneum, warty horn. (05 Mar 2000) |
| pulp horn | A prolongation of the pulp extending toward the cusp of a tooth. (05 Mar 2000) |
| horn | 1. A hard, projecting, and usually pointed organ, growing upon the heads of certain animals, especially. Of the ruminants, as cattle, goats, and the like. The hollow horns of the Ox family consist externally of true horn, and are never shed. 2. The antler of a deer, which is of bone throughout, and annually shed and renewed. 3. <zoology> Any natural projection or excrescence from an animal, resembling or thought to resemble a horn in substance or form; especially., A projection from the beak of a bird, as in the hornbill. A tuft of feathers on the head of a bird, as in the horned owl. A hornlike projection from the head or thorax of an insect, or the head of a reptile, or fish. A sharp spine in front of the fins of a fish, as in the horned pout. 4. <botany> An incurved, tapering and pointed appendage found in the flowers of the milkweed (Asclepias). 5. Something made of a horn, or in resemblance of a horn; as: A wind instrument of music; originally, one made of a horn (of an ox or a ram); now applied to various elaborately wrought instruments of brass or other metal, resembling a horn in shape. "Wind his horn under the castle wall." . See French horn. A drinking cup, or beaker, as having been originally made of the horns of cattle. "Horns of mead and ale." . The cornucopia, or horn of plenty. See Cornucopia. "Fruits and flowers from Amalthaea's horn." . A vessel made of a horn; especially, one designed for containing powder; anciently, a small vessel for carrying liquids. "Samuel took the hornof oil and anointed him [David]" . The pointed beak of an anvil. The high pommel of a saddle; also, either of the projections on a lady's saddle for supporting the leg. A curved projection on the fore part of a plane. One of the projections at the four corners of the Jewish altar of burnt offering. "Joab . . . Caught hold on the horns of the altar." . 6. One of the curved ends of a crescent; especially, an extremity or cusp of the moon when crescent-shaped. "The moon Wears a wan circle round her blunted horns." (Thomson) 7. The curving extremity of the wing of an army or of a squadron drawn up in a crescentlike form. "Sharpening in mooned horns Their phalanx." (Milton) 8. The tough, fibrous material of which true horns are composed, being, in the Ox family, chiefly albuminous, with some phosphate of lime; also, any similar substance, as that which forms the hoof crust of horses, sheep, and cattle; as, a spoon of horn. 9. A symbol of strength, power, glory, exaltation, or pride. "The Lord is . . . The horn of my salvation." (Ps. Xviii. 2) 10. An emblem of a cuckold; used chiefly in the plural. "Thicker than a cuckold's horn." Horn block, the frame or pedestal in which a railway car axle box slides up and down; also called horn plate. Horn of a dilemma. See Dilemma. Horn distemper, a disease of cattle, affecting the internal substance of the horn. Horn drum, a wheel with long curved scoops, for raising water. <chemistry> Horn lead Same as Horn quicksilver (below). <botany> Horn poppy, to exalt one's self; to act arrogantly. "'Gainst them that raised thee dost thou lift thy horn?" . To take a horn, to take a drink of intoxicating liquor. Origin: AS. Horn; akin to D. Horen, hoorn, G, Icel, Sw, & Dan. Horn, Goth. Haorn, W, Gael, & Ir. Corn, L. Cornu, Gr, and perh. Also to E. Cheer, cranium, cerebral; cf. Skr. Ciras head. Cf. Carat, Corn on the foot, Cornea, Corner, Cornet, Cornucopia, Hart. Source: Websters Dictionary (01 Mar 1998) |
| horn fly | A major pest of cattle in the Northern Hemisphere that transmits the filarial parasite Stephanofilaria stilesi. Synonym: Haematobia irritans. (05 Mar 2000) |