| bone density | Bone density is the amount of bone tissue in a certain volume of bone. It can be measured using a special X-ray called a quantitative computed tomogram. (12 Dec 1998) |
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| aethiops mineral | <chemistry> Same as Ethiops mineral. Source: Websters Dictionary (01 Mar 1998) |
| mineral | 1. An inorganic species or substance occurring in nature, having a definite chemical composition and usually a distinct crystalline form. Rocks, except certain glassy igneous forms, are either simple minerals or aggregates of minerals. 2. A mine. 3. Anything which is neither animal nor vegetable, as in the most general classification of things into three kingdoms (animal, vegetable, and mineral). Origin: F. Mineral, LL. Minerale, fr. Minera mine. See Mine. 1. Of or pertaining to minerals; consisting of a mineral or of minerals; as, a mineral substance. 2. Impregnated with minerals; as, mineral waters. <chemistry> Mineral acids, a salt of a mineral acid. Mineral tallow, a familiar name for hatchettite, from its fatty or spermaceti-like appearance. Mineral water. See Water. Mineral wax. See Ozocerite. Mineral wool, a fibrous wool-like material, made by blowing a powerful jet of air or steam through melted slag. It is a poor conductor of heat. Source: Websters Dictionary (01 Mar 1998) |
| mineral fibres | Long, pliable, cohesive natural or manufactured filaments of various lengths. They form the structure of some minerals. The medical significance lies in their potential ability to cause various types of pneumoconiosis (e.g., asbestosis) after occupational or environmental exposure. (12 Dec 1998) |
| mineral oil | <chemical> A mixture of liquid hydrocarbons obtained from petroleum. It is used as laxative, lubricant, ointment base, and emollient. Pharmacological action: cathartic, emollients, ointment bases. Chemical name: Hydrocarbon oils (12 Dec 1998) |
| mineral soil | <ecology> Any soil consisting primarily of mineral (sand, silt and clay) material, rather than organic matter. (12 Jan 1998) |
| mineral water | Water that contains appreciable amounts of certain salts, which give it therapeutic properties. (05 Mar 2000) |
| mineral waters | Water naturally or artificially infused with mineral salts or gases (carbon dioxide). (12 Dec 1998) |
| mineral wax | A wax derived from petroleum. Synonym: mineral wax. (05 Mar 2000) |
| bulk density | Weight per unit of volume, usually specified in pounds per cubic foot. (05 Dec 1998) |
| buoyant density | The density that allows a substance to float in some standard fluid. (05 Mar 2000) |
| vapor density | The mass per unit volume of a vapor; since the vapor density changes with temperature and pressure, it is commonly expressed as a specific gravity, i.e., the weight of the vapor divided by the weight of an equal volume of a reference gas (e.g., oxygen or hydrogen) at the same temperature and pressure. (05 Mar 2000) |
| very low density lipoprotein | <biochemistry> A lipoprotein substances (combination of a fat and a protein) which acts as a carrier for cholesterol and fats (particularly triglycerides) in the bloodstream. Elevations in very low density lipoprotein in the bloodstream are associated with an increased risk of atherosclerosis and coronary artery disease. Acronym: VLDL (18 Nov 1997) |
| centrifugation, density gradient | Separation of particles according to density by employing a gradient of varying densities. at equilibrium each particle settles in the gradient at a point equal to its density. (12 Dec 1998) |
| photon density | The number of counted events recorded in scintigraphy per square centimeter or per square inch of imaged area. Synonym: count density. (05 Mar 2000) |