| usnic acid | An organic acid extracted from the lichen Usnea barbata whichhas antibiotic properties, particularly against Gram-positive bacteriasuch at M. Tuberculosis as well as some pathogenic fungi. (09 Oct 1997) |
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| USP | <abbreviation> United States Pharmacopeia. See: Pharmacopeia. (05 Mar 2000) |
| USP unit | A unit as defined and adopted by the United States Pharmacopeia. (05 Mar 2000) |
| USPHS | The United States Public Health Service, a part of the department of health and human services (hhs). The usphs is responsible for the public health of the american people. It administers a number of important health agencies including the food and drug administration (FDA), centres for disease control (cdc), and the national institutes of health (nih). (12 Dec 1998) |
| usquebaugh | 1. A compound distilled spirit made in Ireland and Scotland; whisky. "The Scottish returns being vested in grouse, white hares, pickled salmon, and usquebaugh." (Sir W. Scott) 2. A liquor compounded of brandy, or other strong spirit, raisins, cinnamon and other spices. Origin: Ir. Or Gael. Uisge beatha, literally, water of life; uisge water + beatha life; akin to Gr. Bios life. See Quick, and cf. Whisky. Source: Websters Dictionary (01 Mar 1998) |
| ustilaginales | An order of basidiomycetous fungi; some species are parasitic on grasses and maise. (12 Dec 1998) |
| ustilaginism | Poisoning by Ustilago maydis (corn smut), which produces burning, itching, hyperaemia, acrocyanosis, and oedema of the extremities; resembles ergotism, pellagra, or infantile acrocynia. (05 Mar 2000) |
| ustilago | A genus of basidiomycetous smut fungi comprising the loose smuts. (12 Dec 1998) |
| Ustilago maydis | A species that resembles ergot of rye in its metabolic action; its black spores on the ears of corn are dispersed by wind and can cause contamination of laboratory cultures. Synonym: corn ergot, corn smut, Ustilago zeae. (05 Mar 2000) |
| Ustilago zeae | A species that resembles ergot of rye in its metabolic action; its black spores on the ears of corn are dispersed by wind and can cause contamination of laboratory cultures. Synonym: corn ergot, corn smut, Ustilago zeae. (05 Mar 2000) |
| ustulation | 1. The act of burning or searing. (Sir W. Petty) 2. <chemistry> The operation of expelling one substance from another by heat, as sulphur or arsenic from ores, in a muffle. 3. <pharmacology> The roasting or drying of moist substances so as prepare them for pulverizing. The burning of wine. 4. Lascivious passion; concupiscence. "It is not certain that they took the better part when they chose ustulation before marriage, expressly against the apostle." (Jer. Taylor) Origin: Cf. F. Ustulation. Source: Websters Dictionary (01 Mar 1998) |
| usual | Such as is in common use; such as occurs in ordinary practice, or in the ordinary course of events; customary; ordinary; habitual; common. Origin: L. Usualis, from usus use: cf. F. Usuel. See Use. Source: Websters Dictionary (01 Mar 1998) |
| usual dose | This is the typical oral dose (all inhalational, suppository or injectables will be specified) given for a particular clinical situation. In most cases, the dose prescribed by your physician will be influenced by many factors including patient age, general health, health history, pregnancy, breast feeding, allergic history, weight and the specific disorder or disease that is being treated. Geriatric patients may be more sensitive to the usual dosage listed here. Pay close attention to the medication strength (in milligrams or grams) listed on the medication container. Caution: Dosage interval may vary with extended-release or Slow-Release preparations. (27 Sep 1997) |
| usual interstitial pneumonia of Liebow | A progressive inflammatory condition starting with diffuse alveolar damage and resulting in fibrosis and honeycombing over a variable time period; also a common feature of collagen-vascular diseases. Synonym: fibrosing alveolitis, Hamman-Rich syndrome, idiopathic interstitial fibrosis. (05 Mar 2000) |
| usufruct | The right of using and enjoying the profits of an estate or other thing belonging to another, without impairing the substance. Origin: L. Usufructus, ususfructus, usus et fructus; usus use + fructus fruit. Source: Websters Dictionary (01 Mar 1998) |