| A-MAT | amorphous material |
|---|---|
| APM | Academy of Parapsychology and Medicine; Academy of Physical Medicine; Academy of Psychosomatic Medic... |
| ARM | adrenergic receptor material; aerosol rebreathing method; ambulatory renal monitor; anorectal manome... |
| BRM | biological response modifier; biuret reactive material |
| CRM | Certified Reference Materials; counting rate meter; cross-reacting material; crown-rump measurement |
| 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) |
| dental material | Any material used in dentistry. (05 Mar 2000) |
| discharge of dredged material | Any addition of dredged material into the waters of the U.S. The term includes, without limitation, the addition of dredged material to a specified discharge site located in waters of the U.S. And the runoff or overflow from a contained land or water disposal area. Discharges of pollutants into waters of the U.S., resulting from the onshore subsequent processing of dredged material that is extracted from any commercial use (other than fill), are not included within this term and are subject to Section 402 of the CWA even though the extraction and deposit of such material may require a permit from the Corps of Engineers. The term does not include plowing, cultivating, seeding, and harvesting for the production of food, fibre, and forest products. The term does not include de minimis, incidental soil movement occurring during normal dredging operations. (09 Oct 1997) |
| discharge of fill material | The addition of fill material into waters of the U.S. The term generally includes, without limitation, the following activities: placement of fill that is necessary for the construction of any structure in a water of the U.S., the building of any structure or impoundment requiring rock, sand, dirt, or other material for its construction, site-development fills for recreational, industrial, commercial, residential, and other uses, causeways or road fills, dams and dikes, artificial islands, property protection and/or reclamation devices such as riprap, groins, seawalls, breakwaters, and revetments, beach nourishment, levees, fill for structures such as sewage treatment facilities, intake and outfall pipes associated with power plants and subaqueous utility lines, and artificial reefs. The term does not include plowing, cultivating, seeding, and harvesting for the production of food, fibre, and forest products. (09 Oct 1997) |
| impression material | Any substance or combination of substances used for making a negative reproduction or impression. (05 Mar 2000) |
| iodinated contrast material | A substance that contains iodine that can be injected, swallowed or given as an enema for the purpose of diagnostics. Iodinated contrast is radiopaque. This means that conventional X-rays will highlight the course of the contrast in the body. (27 Sep 1997) |
| type material | <zoology> A collective term for all type specimens. Zoologists should ensure that such material is transferred as quickly as possible to public institutions where their safety is guaranteed and they are accessible to other workers. (09 Jan 1998) |
| unconsolidated parent material | <ecology> Material from which a soil develops. (09 Oct 1997) |