| dry ice | Nitrogen in the liquid state. Liquid nitrogen is commonly used in cryotherapy. (27 Sep 1997) |
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| ice | 1. Water or other fluid frozen or reduced to the solid state by cold; frozen water. It is a white or transparent colourless substance, crystalline, brittle, and viscoidal. Its specific gravity (0.92, that of water at 4 deg C. Being 1.0) being less than that of water, ice floats. Water freezes at 32 deg F. Or 0 deg Cent, and ice melts at the same temperature. Ice owes its cooling properties to the large amount of heat required to melt it. 2. Concreted sugar. 3. Water, cream, custard, etc, sweetened, flavored, and artificially frozen. 4. Any substance having the appearance of ice; as, camphor ice. Anchor ice, ice which sometimes forms about stones and other objects at the bottom of running or other water, and is thus attached or anchored to the ground. Bay ice, ice formed in bays, fiords, etc, often in extensive fields which drift out to sea. Ground ice, anchor ice. <obstetrics> Ice age, a variety of feldspar, the crystals of which are very clear like ice; rhyacolite. Ice tongs, large iron nippers for handling ice. Ice water. Water cooled by ice. Water formed by the melting of ice. Ice yacht. See Ice boat (above). To break the ice. See Break. Water ice, a confection consisting of water sweetened, flavored, and frozen. Origin: OE. Is, IIs, AS. Is; aksin to D. Ijs, G. Eis, OHG. Is, Icel. Iss, Sw. Is, Dan. Iis, and perh. To E. Iron. Source: Websters Dictionary (01 Mar 1998) |
| ice compress | Cold compress applied to an acute injury for the purpose of decreasing swelling and pain. Ice can be placed within a dry towel (never directly on the site) to achieve the desired effect. (27 Sep 1997) |
| ice cream | A frozen dairy food made from cream or butterfat, milk, sugar, and flavorings. Frozen custard and french-type ice creams also contain eggs. (12 Dec 1998) |
| ice nucleation protein | <protein> Protein produced by some gram-negative bacteria that promote the nucleation of ice, apparently by aligning water molecules along repeated domains of 48 amino acids, that consist of 16 residue repeats containing the conserved octamer AGYGSTxT. Now finding commercial use in snow making at ski resorts. (18 Nov 1997) |
| ice pack | A cold local application to limit or reduce swelling in recently traumatised tissues; usually in the form of a water-impervious container for ice. Improvised means for containing ice (plastic bags, towels, etc.) are often employed, as are chemical sacks that when struck allow the commingling of chemicals that react endothermically. (05 Mar 2000) |
| ice plant | <botany> A plant (Mesembryanthemum crystallinum), sprinkled with pellucid, watery vesicles, which glisten like ice. It is native along the Mediterranean, in the Canaries, and in South Africa. Its juice is said to be demulcent and diuretic; its ashes are used in Spain in making glass. Ice skate = a shoe with a metal runner (called a blade) attached to permit the wearer to glide on ice Ice-skater = one who skates on ice wearing an ice skate; especially. An athlete who performs athletic or artistic movements on a sheet of ice, wearing ice skates; including speed skater and figure skater Source: Websters Dictionary (01 Mar 1998) |
| Aarskog-Scott syndrome | A syndrome of ocular hypertelorism, anteverted nostrils, broad upper lip, saddle-bag scrotum, and laxity of ligaments resulting in genu recurvatum, flat feet, and hyperextensible fingers; X-linked and autosomal dominant forms. Synonym: Aarskog-Scott syndrome. (05 Mar 2000) |
| Aarskog syndrome | <syndrome> Grier et al. (1983) reported father and 2 sons with typical Aarskog syndrome, including short stature, hypertelorism, and shawl scrotum. They tabulated the findings in 82 previous cases. X-linked recessive inheritance has been repeatedly suggested. The family reported by Welch (1974) had affected males in 3 consecutive generations. Thus, there is either genetic heterogeneity or this is an autosomal dominant with strong sex-influence and possibly ascertainment bias resulting from use of the shawl scrotum as a main criterion. Stretchable skin was present in the cases of Grier et al. (1983). Teebi et al. (1993) reported the case of an affected mother and 4 sons (including a pair of monozygotic twins) by 2 different husbands. They suggested that the manifestations were as severe in the mother as in the sons and that this suggested autosomal dominant inheritance. Actually, the mother seemed less severely affected, compatible with X-linked inheritance. Clinical signs: Mild to moderate short stature,normocephaly, Widow's peak hair, maxillary hypoplasia, broad nasal bridge, anteverted nostrils, long philtrum, broad upper lip, curved linear dimple below the lower lip, hypertelorism, ptosis, down-slanted palpebral fissures, ophthalmoplegia, strabismus, hyperopic astigmatism, large cornea, floppy ears, lop-ears,cleft lip/palate, shawl scrotum, saddle-bag scrotum, cryptorchidism, brachydactyly, digital contractures, clinodactyly, mild syndactyly, transverse palmar crease, lymphoedema of the feet, ligamentous laxity, osteochondritis dissecans, proximal finger joint hyperextensibility, flexed distal finger joints, genu recurvatum, flat feet, stretchable skin, cervical spine hypermobility, odontoid anomaly, macrocytic anaemia, hemochromatosis, hepatomegaly, portal cirrhosis, imperforate anus, rectoperineal fistula, interstitial pulmonary disease, sternal deformity. Inheritance: Sex-influenced autosomal dominant form, also X-linked form. (05 Aug 1998) |
| abdominal muscle deficiency syndrome | <syndrome> Congenital absence (partial or complete) of abdominal muscles, in which the outline of the intestines is visible through the protruding abdominal wall; in males, genitourinary anomalies (urinary tract dilation and cryptorchidism) are also found; genetics unclear. (05 Mar 2000) |
| abstinence syndrome | <syndrome> A constellation of physiologic changes undergone by persons or animals who have become physically dependent on a drug or chemical due to prolonged use at elevated doses, but who are abruptly deprived of that substance. The abstinence syndrome varies with the drug to which dependence has developed. Generally the effects observed are in an opposite direction from those produced by the drug; e.g., the withdrawal syndrome from central nervous system depressants such as barbiturates and benzodiazepines consists of insomnia, restlessness, tremulousness, hallucinations, and, in the extreme, tonic-clonic convulsions which may prove fatal. The onset time and severity of the abstinence syndrome depend upon how rapidly the drug disappears from the body. (05 Mar 2000) |
| Achard syndrome | <syndrome> Arachnodactyly with small receding mandible, broad skull, and joint laxity limited to the hands and feet; genetics unclear. (05 Mar 2000) |
| Achard-Thiers syndrome | <syndrome> One form of a virilizing disorder of adrenocortical origin in women, characterised by masculinization and menstrual disorders in association with manifestations of diabetes mellitus, such as glucosuria. (05 Mar 2000) |
| Achenbach syndrome | <syndrome> Haematoma of the finger pad with accompanying oedema; of unknown cause in the absence of disturbances in blood coagulation mechanisms. (05 Mar 2000) |
| achoo syndrome | <syndrome> A disorder characterised by nearly uncontrollable paroxysms of sneezing provoked in a reflex fashion by the sudden exposure of a dark-adapted subject to intensely bright light, usually sunlight. Inheritance: autosomal dominant. (05 Aug 1998) |