| cylinder | 1. A cylindrical lens. 2. A cylindrical or rodlike renal cast. 3. A cylindrical metal container for gases stored under high pressure. Origin: G. Kylindros, a roll (05 Mar 2000) |
|---|---|
| cylinder retinoscopy | Determination of spherical, astigmatic, and refractive error using cylindrical lenses. (05 Mar 2000) |
| cylindraxis | Historical precursor of the term axon, based on an interpretation of the myelinated nerve fibre as a cylinder of which the axon formed the axis. (05 Mar 2000) |
| cylindrical | Shaped like a cylinder; referring to a cylinder. (05 Mar 2000) |
| cylindrical bronchiectasis | Bronchiectasis resulting in dilated bronchi of cylindrical shape; i.e., of uniform caliber. (05 Mar 2000) |
| cylindrical epithelium | Epithelium formed of a single layer of prismatic cells taller than they are wide. Synonym: cylindrical epithelium. (05 Mar 2000) |
| cylindrical lens | A lens in which one of the surfaces is curved in one meridian and less curved in the opposite meridian; e.g., a teaspoon or a football. Synonym: astigmatic lens. (05 Mar 2000) |
| cylindroadenoma | <tumour> A histologic type of epithelial neoplasm, frequently malignant, characterised by islands of neoplastic cells embedded in a hyalinised stroma which may represent a thickened basement membrane; may form from ducts of glands, especially in salivary glands, skin, and bronchi; in the salivary glands, also termed adenoid cystic carcinoma. Synonym: cylindroadenoma. Origin: G. Kylindros, cylinder, -oma, tumour (05 Mar 2000) |
| cylindroid | Synonym: false cast. Origin: G. Kylindrodes, fr. Kylindros, roll, cylinder, + eidos, appearance (05 Mar 2000) |
| cylindroid aneurysm | The uniform dilation of an artery along a considerable distance. Synonym: cylindroid aneurysm. (05 Mar 2000) |
| cylindroma | <tumour> A histologic type of epithelial neoplasm, frequently malignant, characterised by islands of neoplastic cells embedded in a hyalinised stroma which may represent a thickened basement membrane; may form from ducts of glands, especially in salivary glands, skin, and bronchi; in the salivary glands, also termed adenoid cystic carcinoma. Synonym: cylindroadenoma. Origin: G. Kylindros, cylinder, -oma, tumour (05 Mar 2000) |
| cylindromatous carcinoma | <tumour> A histologic type of carcinoma characterised by large epithelial masses containing round, glandlike spaces or cysts which frequently contain mucus or collagen and are bordered by a few or many layers of epithelial cells without intervening stroma, forming a cribriform pattern like a slice of Swiss cheese; perineural invasion and haematogenous metastasis are common; occurs most commonly in salivary glands. Synonym: cylindromatous carcinoma. (05 Mar 2000) |
| cylindrosarcoma | <tumour> Obsolete term for a sarcoma that manifests several foci of hyaline degenerative changes, such as those observed in cylindromas. (05 Mar 2000) |
| cylindruria | The presence of renal cylinders or casts in the urine. (05 Mar 2000) |
| cyllosoma | One-sided congenital defect of the lower abdominal wall (eventration) with defective development of the corresponding lower limb. Origin: G. Kyllos, deformed, esp. Clubfooted or bandylegged, + soma, body (05 Mar 2000) |