| SU | salicyluric acid; secretory unit; sensation unit; solar urticaria; sorbent unit; spectrophotometric ... |
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| SPE | Solar Particle Event |
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| SK | solar keratoses |
| SSR | solar simulated radiation |
| solar cheilitis | Mucosal atrophy with drying, crusting, and fissuring of the vermillion border of the lower lip in older individuals, resulting from chronic exposure to sunlight; dysplastic (premalignant) changes are noted microscopically, analogous to solar keratosis. Synonym: actinic cheilitis. (05 Mar 2000) |
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| actinic cheilitis | Mucosal atrophy with drying, crusting, and fissuring of the vermillion border of the lower lip in older individuals, resulting from chronic exposure to sunlight; dysplastic (premalignant) changes are noted microscopically, analogous to solar keratosis. Synonym: actinic cheilitis. (05 Mar 2000) |
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| angular cheilitis | Inflammation and fissuring radiating from the commissures of the mouth secondary to predisposing factors such as lost vertical dimension in denture wearers, nutritional deficiencies, atopic dermatitis, or Candida albicans infection. Synonym: angular stomatitis, commissural cheilitis, perleche. (05 Mar 2000) |
| Volkmann's cheilitis | An acquired disorder, of unknown aetiology, of the lower lip characterised by swelling, ulceration, crusting, mucous gland hyperplasia, abscesses, and sinus tracts. Synonym: Baelz' disease, myxadenitis labialis, Volkmann's cheilitis. (05 Mar 2000) |
| cheilitis | <pathology> Inflammation and cracking of the lips. May occur secondary to a vitamin (C or B-complex) or mineral deficiency. (27 Sep 1997) |
| cheilitis exfoliativa | An exfoliative dermatitis; it may be related to atopic dermatitis or to contact sensitivity. (05 Mar 2000) |
| cheilitis glandularis | An acquired disorder, of unknown aetiology, of the lower lip characterised by swelling, ulceration, crusting, mucous gland hyperplasia, abscesses, and sinus tracts. Synonym: Baelz' disease, myxadenitis labialis, Volkmann's cheilitis. (05 Mar 2000) |
| cheilitis granulomatosa | Chronic, diffuse, soft swelling of the lips, of unknown aetiology, microscopically characterised by noncaseating granulomatous inflammation. See: Melkersson-Rosenthal syndrome. (05 Mar 2000) |
| cheilitis venenata | Allergic contact dermatitis of the lips, as in contact cheilitis. (05 Mar 2000) |
| commissural cheilitis | Inflammation and fissuring radiating from the commissures of the mouth secondary to predisposing factors such as lost vertical dimension in denture wearers, nutritional deficiencies, atopic dermatitis, or Candida albicans infection. Synonym: angular stomatitis, commissural cheilitis, perleche. (05 Mar 2000) |
| contact cheilitis | Inflammation of the lips resulting from contact with a primary irritant or specific allergen, including ingredients of lipsticks. (05 Mar 2000) |
| impetiginous cheilitis | Pyoderma of the lips. (05 Mar 2000) |
| solar | 1. Of or pertaining to the sun; proceeding from the sun; as, the solar system; solar light; solar rays; solar influence. See Solar system, below. 2. <astronomy> Born under the predominant influence of the sun. "And proud beside, as solar people are." (Dryden) 3. Measured by the progress or revolution of the sun in the ecliptic; as, the solar year. 4. Produced by the action of the sun, or peculiarly affected by its influence. "They denominate some herbs solar, and some lunar." (Bacon) Solar cycle. See Cycle. Solar day. See Day. Solar engine, an engine in which the energy of solar heat is used to produce motion, as in evaporating water for a steam engine, or expanding air for an air engine. <botany> Solar flowers, flowers which open and shut daily at certain hours. Solar lamp, an argand lamp. Solar microscope, a microscope consisting essentially, first, of a mirror for reflecting a beam of sunlight through the tube, which sometimes is fixed in a window shutter; secondly, of a condenser, or large lens, for converging the beam upon the object; and, thirdly, of a small lens, or magnifier, for throwing an enlarged image of the object at its focus upon a screen in a dark room or in a darkened box. Solar month. See Month. Solar oil, a paraffin oil used an illuminant and lubricant. <mathematics> Solar phosphori, the sun, with the group of celestial bodies which, held by its attraction, revolve round it. The system comprises the major planets, with their satellites; the minor planets, or asteroids, and the comets; also, the meteorids, the matter that furnishes the zodiacal light, and the rings of Saturn. The satellites that revolve about the major planets are twenty-two in number, of which the Earth has one (see Moon), Mars two, Jupiter five, Saturn nine, Uranus four, and Neptune one. The asteroids, between Mars and Jupiter, thus far discovered (1900), number about five hundred, the first four of which were found near the beginning of the century, and are called Ceres, Pallas, Juno, and Vesta. The principal elements of the major planets, and of the comets seen at more than one perihelion passage, are exhibited in the following tables: I. Major Planets. Symbol.Name.Mean distance that of the Earth being unity.Period in days.Eccentricity.Inclination of orbit.Diameter in miles II. Periodic Comets. Name.Greatest distance from sun.Least distance from sun.Inclination of orbit.Perihelion passage. Deg min 54 Encke's3.314.100.34212 541885.2 Solar telegraph, telegraph for signaling by flashes of reflected sunlight. Solar time. See Apparent time, under Time. Origin: L. Solaris, fr. Sol the sun; akin to As. Sl, Icel. Sl, Goth. Sauil, Lith. Saule, W. Haul,. Sul, Skr. Svar, perhaps to E. Sun:F. Solaire. Cf. Parasol. Sun. Source: Websters Dictionary (01 Mar 1998) |
| solar activity | Any type of variation in the appearance of energy output of the sun. (12 Dec 1998) |
| solar blindness | Damage to the fovea centralis of the retina and the adjacent choroid due to the thermal action of infrared rays, consequent to sungazing or watching a solar eclipse without sufficient eye protection. See: photoretinopathy. Synonym: eclipse blindness, solar blindness. (05 Mar 2000) |
| solar dermatitis | A dermatitis in photosensitive persons caused by exposure to the sun's rays. (05 Mar 2000) |
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