| Moore's lightning streaks | Photopsia manifested by vertical flashes of light, seen usually on the temporal side of the affected eye, caused by the involutional shrinkage of vitreous humor. (05 Mar 2000) |
|---|---|
| lightning | 1. A discharge of atmospheric electricity, accompanied by a vivid flash of light, commonly from one cloud to another, sometimes from a cloud to the earth. The sound produced by the electricity in passing rapidly through the atmosphere constitutes thunder. 2. The act of making bright, or the state of being made bright; enlightenment; brightening, as of the mental powers. Ball lightning, a rare form of lightning sometimes seen as a globe of fire moving from the clouds to the earth. Chain lightning, lightning in angular, zigzag, or forked flashes. Heat lightning, more or less vivid and extensive flashes of electric light, without thunder, seen near the horizon, especially. at the close of a hot day. Lightning arrester, a luminous beetle. See Firefly. Lightning conductor, a lightning rod. Lightning glance, a quick, penetrating glance of a brilliant eye. Lightning rod, a metallic rod set up on a building, or on the mast of a vessel, and connected with the earth or water below, for the purpose of protecting the building or vessel from lightning. Sheet lightning, a diffused glow of electric light flashing out from the clouds, and illumining their outlines. The appearance is sometimes due to the reflection of light from distant flashes of lightning by the nearer clouds. Origin: For lightening, fr. Lighten to flash. Source: Websters Dictionary (01 Mar 1998) |
| lightning injuries | Accidental injuries caused by brief high-voltage electrical discharges during thunderstorms. Cardiopulmonary arrest, coma and other neurologic symptoms, myocardial necrosis, and dermal burns are common. Prompt treatment of the acute sequelae, including cardiopulmonary resuscitation, is indicated for survival. (12 Dec 1998) |
| lightning strip | A strip of metal with abrasive on one side, used to open rough or improper contacts of proximal restorations. (05 Mar 2000) |
| malignant catarrh | A herpes virus infection of cattle characterised by catarrhal inflammation of the upper respiratory and alimentary epithelia, keratoconjunctivitis, encephalitis and lymph node enlargement. Syn: bovine epitheliosis, snotsiekte. (12 Dec 1998) |
| malignant catarrh of cattle | A highly fatal, sporadic disease of cattle caused by alcelaphine herpesvirus 1 (a member of the Herpesviridae family) and characterised by inflammation, ulceration, and exudation of the oral and upper respiratory mucous membranes, and sometimes eye lesions and nervous system disturbances. Synonym: malignant catarrh of cattle. (05 Mar 2000) |
| vernal catarrh | A chronic, bilateral conjunctival inflammation with photophobia and intense itching that recurs seasonally during warm weather; characterised in the palpebral form by cobblestone papillae in the upper palpebral conjunctiva and in the bulbar form by gelatinous nodules adjacent to the corneoscleral limbus. Synonym: allergic conjunctivitis, spring conjunctivitis, spring ophthalmia, vernal catarrh, vernal keratoconjunctivitis. (05 Mar 2000) |
| catarrh | <otolaryngology> Inflammation of a mucous membrane, with a free discharge (Hippocrates), especially such inflammation of the air passages of the head and throat. Origin: L. Catarrhus, Gr. Katarrhein = to flow down (16 Mar 1998) |
| nasal catarrh | <pathology> Inflammation of the mucous membrane of the nose. (18 Nov 1997) |
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|
Á¦Ç°¸í |
ÆÇ¸Å»ç |
º¸ÇèÄÚµå | ¼ººÐ/ÇÔ·® | ±¸ºÐ/º¸Çè±Þ¿© |
|---|