| snow conjunctivitis | Acute keratoconjunctivitis resulting from exposure to intense ultraviolet irradiation. Synonym: actinic conjunctivitis, arc-flash conjunctivitis, flash keratoconjunctivitis, ophthalmia nivalis, snow conjunctivitis, welder's conjunctivitis. (05 Mar 2000) |
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| carbon dioxide snow | Solid carbon dioxide used in the treatment of warts, lupus, nevi, and other skin affections, and as a refrigerant. Synonym: dry ice. (05 Mar 2000) |
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| snow | 1. Watery particles congealed into white or transparent crystals or flakes in the air, and falling to the earth, exhibiting a great variety of very beautiful and perfect forms. Snow is often used to form compounds, most of which are of obvious meaning; as, snow-capped, snow-clad, snow-cold, snow-crowned, snow-crust, snow-fed, snow-haired, snowlike, snow-mantled, snow-nodding, snow-wrought, and the like. 2. Something white like snow, as the white colour (argent) in heraldry; something which falls in, or as in, flakes. "The field of snow with eagle of black therein." (Chaucer) Red snow. See Red. Snow bunting. <zoology> A small black leaping poduran (Achorutes nivicola) often found in winter on the snow in vast numbers. Snow flood, a flood from melted snow. <botany> Snow flower, a fleshy parasitic herb (Sarcodes sanguinea) growing in the coniferous forests of California. It is all of a bright red colour, and is fabled to grow from the snow, through which it sometimes shoots up. Origin: OE. Snow, snaw, AS. Snaw; akin to D. Sneeuw, OS. & OHG. Sneo, G. Schnee, Icel. Snaer, snjor, snajar, Sw. Sno, Dan. Snee, Goth. Snaiws, Lith. Snegas, Russ. Snieg', Ir. & Gael. Sneachd, W. Nyf, L. Nix, nivis, Gr. Acc. Nifa, also AS. Sniwan to snow, G. Schneien, OHG. Sniwan, Lith. Snigti, L. Ningit it snows, Gr. Nifei, Zend snizh to snow; cf. Skr. Snih to be wet or sticky. Source: Websters Dictionary (01 Mar 1998) |
| snow blindness | <ophthalmology> Severe photophobia that occurs secondary to ultraviolet light induced keratoconjunctivitis. (27 Sep 1997) |
| Snow procedure | Augmentation of the bladder by incision and excision of detrusor muscle leaving only bladder epithelium. Synonym: autocystoplasty, Snow procedure. (05 Mar 2000) |
| actinic conjunctivitis | Acute keratoconjunctivitis resulting from exposure to intense ultraviolet irradiation. Synonym: actinic conjunctivitis, arc-flash conjunctivitis, flash keratoconjunctivitis, ophthalmia nivalis, snow conjunctivitis, welder's conjunctivitis. (05 Mar 2000) |
| acute catarrhal conjunctivitis | An obsolete term for conjunctivitis with marked hyperaemia and mucopurulent discharge, with a tendency toward spontaneous recovery. Synonym: mucopurulent conjunctivitis. (05 Mar 2000) |
| acute contagious conjunctivitis | An obsolete term for an acute conjunctivitis marked by intense hyperaemia and profuse mucopurulent discharge. Synonym: acute epidemic conjunctivitis, pinkeye. (05 Mar 2000) |
| acute epidemic conjunctivitis | An obsolete term for an acute conjunctivitis marked by intense hyperaemia and profuse mucopurulent discharge. Synonym: acute epidemic conjunctivitis, pinkeye. (05 Mar 2000) |
| acute follicular conjunctivitis | An obsolete term for acute viral conjunctivitis. (05 Mar 2000) |
| acute haemorrhagic conjunctivitis | Specific acute endemic conjunctivitis with eyelid swelling, tearing, conjunctival haemorrhages, and follicles; usually caused by Enterovirus type 70. (05 Mar 2000) |
| acute viral conjunctivitis | An epidemic inflammation of the conjunctiva marked by follicles, especially in the lower fornix; may be caused by adenoviruses, herpesvirus, and Newcastle disease virus. (05 Mar 2000) |
| allergic conjunctivitis | <ophthalmology> An inflammatory condition of the conjunctiva secondary to an allergic stimulus. Common symptoms include itchy, red and tearing eyes (27 Sep 1997) |
| angular conjunctivitis | A subacute bilateral conjunctival inflammation sometimes caused by the Moraxella bacillus, marked by redness of the lateral canthi and scanty, stringy discharge that adheres to the lashes. Synonym: Moraxella conjunctivitis. (05 Mar 2000) |
| arc-flash conjunctivitis | Acute keratoconjunctivitis resulting from exposure to intense ultraviolet irradiation. Synonym: actinic conjunctivitis, arc-flash conjunctivitis, flash keratoconjunctivitis, ophthalmia nivalis, snow conjunctivitis, welder's conjunctivitis. (05 Mar 2000) |
| bacterial conjunctivitis | <pathology> A bacterial infection of a portion of the eye known as the conjunctiva. Common symptoms include redness of the eyes with a thick, often coloured purulent discharge. (27 Sep 1997) |