| DCH | delayed cutaneous hypersensitivity; Diploma in Child Health |
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| DH | daily habits; day hospital; dehydrocholate; dehydrogenase; delayed hypersensitivity; dermatitis herp... |
| DHR | delayed hypersensitivity reaction; Department of Human Resources |
| DHS | delayed hypersensitivity; diabetic hyperosmolar state; duration of hospital stay; dynamic hip screw |
| DSHR | delayed skin hypersensitivity reaction |
| immediate hypersensitivity reaction | An immune response mediated by antibody, usually IgE, which occurs within minutes after a second encounter with an antigen, resulting in the release of histamine and subsequent swelling and vasodilation. (05 Mar 2000) |
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| tuberculin-type hypersensitivity | A local or generalised response that begins 24 to 48 hours after exposure to an antigen. See: cell-mediated reaction. Synonym: contact hypersensitivity, delayed hypersensitivity, late reaction, tuberculin-type hypersensitivity. (05 Mar 2000) |
| type III hypersensitivity reaction | An immunologic category of diseases evoked by the deposition of antigen-antibody or antigen-antibody-complement complexes on cell surfaces, with subsequent involvement of breakdown products of complement, platelets, and polymorphonuclear leukocytes, and development of vasculitis; nephritis is common. Arthus phenomenon and serum sickness are classic examples, but many other disorders, including most of the connective tissue disease's, may belong in this immunologic category; immune complex disease's can also occur during a variety of disease's of known aetiology, such as subacute bacterial endocarditis. See: autoimmune disease. Synonym: immune complex disorder, type III hypersensitivity reaction. (05 Mar 2000) |
| bacterial food poisoning | A term commonly used to refer to conditions limited to enteritis or gastroenteritis (excluding the enteric fevers and the dysenteries) caused by bacterial multiplication per se or by a soluble bacterial exotoxin. (05 Mar 2000) |
| health food | A non-medical term defined by the lay public as a food that has little or no preservatives, which has not undergone major processing, enrichment or refinement and which may be grown without pesticides. Health foods have been attributed with the ability to prevent the development of diseases, slow the aging process, and prolong life. (12 Dec 1998) |
| salmonella food poisoning | Poisoning caused by ingestion of food harboring species of salmonella. Conditions of raising, shipping, slaughtering, and marketing of domestic animals contribute to the spread of this bacterium in the food supply. (12 Dec 1998) |
| staphylococcal food poisoning | Poisoning by staphylococcal toxins present in contaminated food. (12 Dec 1998) |
| Staphylococcus food poisoning | Outbreaks commonly caused by staphylococcal enterotoxin and characterised by an abrupt onset of gastroenteritis within several hours after ingestion of the food contaminated with the preformed exotoxin; vomiting is usually more severe and diarrhoea less severe than in infectious forms of bacterial food poisoning. (05 Mar 2000) |
| infant food | Food processed and manufactured for the nutritional health of children in their first year of life. (12 Dec 1998) |
| essential food factors | Those substances required in the diet: certain amino acids and unsaturated fatty acids, vitamins, essential minerals, etc. (05 Mar 2000) |
| united states food and drug administration | An agency of the public health service concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc. (12 Dec 1998) |
| food | 1. What is fed upon; that which goes to support life by being received within, and assimilated by, the organism of an animal or a plant; nutriment; aliment; especially, what is eaten by animals for nourishment. In a physiological sense, true aliment is to be distinguished as that portion of the food which is capable of being digested and absorbed into the blood, thus furnishing nourishment, in distinction from the indigestible matter which passes out through the alimentary canal as faeces. Foods are divided into two main groups: nitrogenous, or proteid, foods, i.e, those which contain nitrogen, and nonnitrogenous, i.e, those which do not contain nitrogen. The latter group embraces the fats and carbohydrates, which collectively are sometimes termed heat producers or respiratory foods, since by oxidation in the body they especially subserve the production of heat. The proteids, on the other hand, are known as plastic foods or tissue formers, since no tissue can be formed without them. These latter terms, however, are misleading, since proteid foods may also give rise to heat both directly and indirectly, and the fats and carbohydrates are useful in other ways than in producing heat. 2. Anything that instructs the intellect, excites the feelings, or molds habits of character; that which nourishes. "This may prove food to my displeasure." (Shak) "In this moment there is life and food For future years." (Wordsworth) Food is often used adjectively or in self-explaining compounds, as in food fish or food-fish, food supply. <zoology> Food vacuole, one of the spaces in the interior of a protozoan in which food is contained, during digestion. Food yolk. <biology> See Yolk. Synonym: Aliment, sustenance, nutriment, feed, fare, victuals, provisions, meat. Origin: OE. Fode, AS. Foda; akin to Icel. Faeoa, faeoi, Sw. Foda, Dan. & LG. Fode, OHG. Fatunga, Gr. Patei^sthai to eat, and perh. To Skr. Pa to protect, L. Pascere to feed, pasture, pabulum food, E. Pasture. 75. Cf. Feed, Fodder food, Foster to cherish. (01 Mar 1998) |
| food additives | Substances which are of little or no nutritive value, but are used in the processing or storage of foods or animal feed, especially in the developed countries; includes antioxidants, food preservatives, food colouring agents, flavoring agents, anti-infective agents (both plain and local), vehicles, excipient and other similarly used substances. Many of the same substances are pharmaceutic aid when added to pharmaceuticals rather than to foods. (12 Dec 1998) |
| food and beverages | Edible or potable substances. (12 Dec 1998) |
| food and drug administration | The U.S. Agency responsible for regulation of biotechnology foodproducts. The major laws under which the agency has regulatory powersinclude the Food, Drug, and Cosmetic act, and the Public Health Service Act. (09 Oct 1997) |