| FF | degree of fineness of abrasive particles; fat-free; father factor; fecal frequency; fertility factor... |
|---|---|
| FFF | degree of fineness of abrasive particles; field-flow fractionation; flicker fusion frequency |
| NK cell | Natural Killer cell |
| CNL | cardiolipin natural lecithin; chronic neutrophilic leukemia |
| DND | died a natural death |
| ACM | Asbestos Containing Material |
|---|---|
| CRM | Certified Reference Material |
| CRM | Cross-reacting material |
| IRM | Intermediate Restorative Material |
| MSDS | Material Safety DAta Sheet |
| abrasive | 1. Causing abrasion. 2. Any material used to produce abrasions. 3. A substance used in dentistry for abrading, grinding, or polishing. (05 Mar 2000) |
|---|---|
| abrasive media | <microscopy> Extremely hard materials (Diamond, SiC, Al2O3 etc.), usually in a very fine particulate form (less than 15 micrometres), used in the initial stages of specimen preparation to grind and polish samples to the desired thickness or finish. (05 Aug 1998) |
| abrasive strip | A ribbon-like piece of linen on one side of which is bonded abrasive particles; used in dentistry for contouring and polishing proximal surfaces of restorations. (05 Mar 2000) |
| barium contrast material | This radiopaque contrast material is either swallowed or given as a enema for the purpose of demonstrating the anatomy of the gastrointestinal tract using X-rays. (27 Sep 1997) |
| base material | Any substance from which a denture base may be made, such as shellac, acrylic resin, vulcanite, polystyrene, metal, etc. (05 Mar 2000) |
| breeder material | <radiobiology> In D-T fusion, refers to lithium or lithium-containing substances which are placed in the blanket to convert the fusion neutrons back into tritium, using nuclear transmutation of lithium isotopes. (09 Oct 1997) |
| by-product material | Radioactive material produced by nuclear fission or by neutron irradiation in a nuclear reactor or similar device. (05 Mar 2000) |
| radiopaque contrast material | A radiopaque substance (for example metal) will be highlighted (appear white) on a plain X-ray. The use of iodine containing radiopaque contrast dyes allow enhancement of the anatomy demonstrable with conventional X-ray. (27 Sep 1997) |
| genetic material | A gene, a part of a gene, a group of genes, or fragments of many genes, on a molecule of DNA, a fragment of DNA, a group of DNA molecules, or fragments of many DNA molecules. Could refer to anything from a small fragment of DNA to the entire genome of an organism. (09 Oct 1997) |
| parent material | <ecology> The unconsolidated and more or less weathered mineral or organic matter from which the soil profile is developed. (09 Oct 1997) |
| material | 1. Consisting of matter; not spiritual; corporeal; physical; as, material substance or bodies. "The material elements of the universe." (Whewell) 2. Hence: Pertaining to, or affecting, the physical nature of man, as distinguished from the mental or moral nature; relating to the bodily wants, interests, and comforts. 3. Of solid or weighty character; not insubstantial; of cinsequence; not be dispensed with; important. "Discourse, which was always material, never trifling." (Evelyn) "I shall, in the account of simple ideas, set down only such as are most material to our present purpose." (Locke) 4. <logic> Pertaining to the matter, as opposed to the form, of a thing. See Matter. Material cause. See Cause. Material evidence, evidence which conduces to the proof or disproof of a relevant hypothesis. Synonym: Corporeal, bodily, important, weighty, momentous, essential. Origin: L. Materialis, fr. Materia stuff, matter: cf. F. Materiel. See Matter, and cf. Materiel. Source: Websters Dictionary (01 Mar 1998) |
| piling unmerchantable material | (PUM) A logging contract requirement to remove and pile unmerchantable woody material of a specified size. (05 Dec 1998) |
| plastic restoration material | In dentistry, any material that may be shaped directly to the tooth cavity, such as amalgam, cement, or resin. (05 Mar 2000) |
| contrast material | A substance that is introduced into or around a structure and, because of the difference in absorption of X-rays by the contrast medium and the surrounding tissues, allows radiographic visualisation of the structure. (18 Nov 1997) |
| cross-reacting material | <haematology> A substance sufficiently different from a reference substance (R) to have a perceptibly different function from R but sufficiently similar to R that it reacts with anti-R antibodies; e.g., mutant factor VIII may be defective or even inert in coagulation and yet be immunologically identified as factor VIII. (05 Mar 2000) |
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