| acid-ash diet | A diet consisting mainly of fruits, vegetables, and milk (with minimal amounts of meat, fish, eggs, cheese, and cereals), which, when catabolised, leave an alkaline residue to be excreted in the urine. Synonym: acid-ash diet, basic diet. (05 Mar 2000) |
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| alkaline-ash diet | A diet consisting mainly of fruits, vegetables, and milk (with minimal amounts of meat, fish, eggs, cheese, and cereals), which, when catabolised, leave an alkaline residue to be excreted in the urine. Synonym: acid-ash diet, basic diet. (05 Mar 2000) |
| ash | <radiobiology> Fusion reaction products trapped in a plasma. Ash is bad because (a) it generally radiates more strongly than the fuel ions, and thus reduces energy confinement, and (b) it creates additional plasma pressure and/or reduces pressure available for fuel ions. Controlling ash is a major area of fusion research. Ideally one would be able to extract the ash ions after diverting an appropriate fraction of their energy to heating the fuel ions, and then convert the remaining ash energy to electricity. Current research involves using RF waves to transfer energy from ash ions to fuel ions, and to push the ash into the scrape-off layer, where it can be collected via divertors. (09 Oct 1997) |
| ash-fire | A low fire used in chemical operations. Source: Websters Dictionary (01 Mar 1998) |
| ash wednesday | The first day of Lent; so called from a custom in the Roman Catholic church of putting ashes, on that day, upon the foreheads of penitents. Source: Websters Dictionary (01 Mar 1998) |
| bone ash | Ca3(PO4)2;used as an antacid. Synonym: bone ash, bone phosphate, tertiary calcium phosphate, tricalcium phosphate, whitlockite. (05 Mar 2000) |
| bottom ash | Noncombustable ash that is left after solid fuel has been burned. (05 Dec 1998) |
| pearl-ash | <chemistry> A white amorphous or granular substance which consists principally of potassium carbonate, and has a strong alkaline reaction. The hydroxide of potassium hydrate, a hard white brittle substance, KOH, having strong caustic and alkaline properties; hence The impure potassium carbonate obtained by leaching wood ashes, and evaporating the lye, or as a white crystalline pearl-ash. It has previously been an important source of potassium compounds, and previously used in making soap, glass, etc. Synonym: caustic potash. Source: Websters Dictionary (01 Mar 1998) |
| fly ash | Small ash particles carried in suspension in combustion products. (05 Dec 1998) |
| balanced diet | A diet containing the essential nutrients with a reasonable ration of all the major food groups. (05 Mar 2000) |
| basal diet | A diet having a caloric value equal to the basal heat production and sufficient quanties of essential nutrients to meet basic needs, in experiments in nutrition, a diet from which a given constituent (e.g., a vitamin, mineral, or amino acid), the nutritional value of which is to be determined, is omitted for a period and the effects observed; the subject is observed for a second period during which the ingredient being studied is added to the diet. (05 Mar 2000) |
| basic diet | A diet consisting mainly of fruits, vegetables, and milk (with minimal amounts of meat, fish, eggs, cheese, and cereals), which, when catabolised, leave an alkaline residue to be excreted in the urine. Synonym: acid-ash diet, basic diet. (05 Mar 2000) |
| bland diet | A regular diet omitting foods that mechanically or chemically irritate the gastrointestinal tract. (05 Mar 2000) |
| rachitic diet | A diet that will induce rickets in susceptible experimental animals. (05 Mar 2000) |
| macrobiotic diet | A diet claimed to promote longevity, often by promoting an emphasis on natural foods and restrictions on non-cereal foods, as well as liquids. (05 Mar 2000) |