| Cantelli's sign | <clinical sign> Reflex movement of the eyes in the opposite direction to that which the head is moved, e.g., the eyes being lowered as the head is raised, and the reverse (Cantelli's sign); an indication of functional integrity of the brainstem tegmental pathways and cranial nerves involved in eye movement. Synonym: vestibular ocular reflex. (05 Mar 2000) |
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| cantering rhythm | A triple cadence to the heart sounds; due to an abnormal third or fourth heart sound being heard in addition to the first and second sounds, and usually indicative of serious disease. Synonym: bruit de galop, cantering rhythm, gallop rhythm, Traube's bruit. (05 Mar 2000) |
| canthal | Relating to a canthus. (05 Mar 2000) |
| canthal hypertelorism | Increased distance between the medial canthi of the eyelids. Synonym: canthal hypertelorism. Origin: G. Tele, distant, + kanthos, canthus (05 Mar 2000) |
| cantharidal | Relating to or containing cantharides. (05 Mar 2000) |
| cantharidal collodion | A powdered chloroform extract of cantharides in flexible collodion; a vesicant. Synonym: blistering collodion, collodion vesicans. (05 Mar 2000) |
| cantharidate | A salt of cantharidic acid. (05 Mar 2000) |
| cantharides | Plural of cantharis. (05 Mar 2000) |
| cantharidic acid | C10H14O5;an acid, derived from cantharis, that forms salts (cantharidates) with alkalis. (05 Mar 2000) |
| cantharidin | <chemical> Toxic compound from the spanish fly or blistering beetle (lytta (cantharis) vesicatoria) and other insects. It was formerly an irritant, vesicant, and rubefacient paste of whole insects called cantharides. It is now used to produce skin inflammation. It causes gastroenteritis, nephritis, and circulatory failure if absorbed. Pharmacological action: irritants. Chemical name: 4,7-Epoxyisobenzofuran-1,3-dione, hexahydro-3a,7a-dimethyl-, (3aalpha,4beta,7beta,7aalpha)- (12 Dec 1998) |
| cantharis | A dried beetle, Lytta (Cantharis) vesicatoria, used as a counterirritant and vesicant. Synonym: Russian fly, Spanish fly. Origin: L., fr. G. Kantharis, a beetle (05 Mar 2000) |
| cantharis camphor | <chemical> Toxic compound from the spanish fly or blistering beetle (lytta (cantharis) vesicatoria) and other insects. It was formerly an irritant, vesicant, and rubefacient paste of whole insects called cantharides. It is now used to produce skin inflammation. It causes gastroenteritis, nephritis, and circulatory failure if absorbed. Pharmacological action: irritants. Chemical name: 4,7-Epoxyisobenzofuran-1,3-dione, hexahydro-3a,7a-dimethyl-, (3aalpha,4beta,7beta,7aalpha)- (12 Dec 1998) |
| canthaxanthin | <chemical> A trans-carotenoid pigment widely distributed in nature. The compound is used as an oral suntanning agent and as a food and drug colouring agent. It is believed that it inhibits development of tumour cells and neoplastic transformation through its antioxidant properties. Oral ingestion of the compound causes canthaxanthin retinopathy. Pharmacological action: antioxidants, food colouring agents. Chemical name: beta,beta-Carotene-4,4'-dione (12 Dec 1998) |
| canthectomy | Excision of a palpebral canthus. Origin: G. Kanthos, canthus, + ektome, excision (05 Mar 2000) |
| canthi | Plural of canthus. (05 Mar 2000) |