| ben | <zoology> A hoglike mammal of new Guinea (Porcula papuensis). Origin: Native name. Source: Websters Dictionary (01 Mar 1998) |
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| ben nut | <botany> The seed of one or more species of moringa; as, oil of ben. See Moringa. Origin: Ar. Ban, name of the tree. Source: Websters Dictionary (01 Mar 1998) |
| benactyzine | <chemical> A centrally acting muscarinic antagonist. Benactyzine has been used in the treatment of depression and is used in research to investigate the role of cholinergic systems on behaviour. Pharmacological action: antidepressive agents, muscarinic antagonists, parasympatholytics. Chemical name: Benzeneacetic acid, alpha-hydroxy-alpha-phenyl-, 2-(diethylamino)ethyl ester (12 Dec 1998) |
| benactyzine hydrochloride | 2-Diethylaminoethyl benzilate hydrochloride;an anticholinergic drug with the same actions but with approximately only one-fifth the activity of atropine; it is thought to raise the threshold of emotional reaction to external stimuli; now rarely used as a psychotherapeutic and tranquillising agent. (05 Mar 2000) |
| Bence Jones albumin | Proteins with unusual thermosolubility found in the urine of patients with multiple myeloma, consisting of monoclonal immunoglobulin light chains. See: Bence Jones reaction. See: immunoglobulin. (05 Mar 2000) |
| Bence Jones cylinders | Slightly irregular, relatively smooth, rod-shaped or cylindroid bodies of fairly tenacious, viscid proteinaceous material in the fluid of the seminal vesicles. (05 Mar 2000) |
| Bence Jones protein | <haematology, oncology> These proteins are dimers of immunoglobulin light chains, normally produced by plasma cells. Bence Jones proteins are sufficiently small to be excreted by the kidney. It is a characteristic protein found in the urine of most patients with multiple myeloma. It can be used to help in diagnosis of the disease and to monitor the response to treatment. Quantification requires a 24 hour urine collection. See: Bence Jones reaction (06 Oct 1997) |
| Bence Jones proteins | Proteins with unusual thermosolubility found in the urine of patients with multiple myeloma, consisting of monoclonal immunoglobulin light chains. See: Bence Jones reaction. See: immunoglobulin. (05 Mar 2000) |
| Bence Jones proteinuria | Presence of Bence Jones proteins in the urine, usually indicative of a neoplastic process such as multiple myeloma, amyloidosis, or Waldenstrom's macroglobulinaemia. (05 Mar 2000) |
| Bence Jones reaction | <investigation> The classic method of identifying Bence Jones protein. This protein precipitates from urine in the range of 45 to 70 degrees Centigrade. It goes into solution at temperatures above or below this range. Used in the diagnosis of multiple myeloma. Less commonly, this test is positive in Waldenstrom's macroglobulinaemia, chronic lymphocytic leukaemia and amyloidosis. (27 Sep 1997) |
| Bence Jones, Henry | <person> British physician, 1814-1873. See: Bence Jones albumin, Bence Jones cylinders, Bence Jones myeloma, Bence Jones proteins, Bence Jones reaction. (05 Mar 2000) |
| bench | Origin: OE. Bench, benk, AS. Benc; akin to Sw. Bank, Dan baenk, Icel. Bekkr, OS, D, & G. Bank. Cf. Bank, Beach. 1. A long seat, differing from a stool in its greater length. "Mossy benches supplied the place of chairs." (Sir W. Scott) 2. A long table at which mechanics and other work; as, a carpenter's bench. 3. The seat where judges sit in court. "To pluck down justice from your awful bench." (Shak) 4. The persons who sit as judges; the court; as, the opinion of the full bench. See King's Bench. 5. A collection or group of dogs exhibited to the public; so named because the animals are usually placed on benches or raised platforms. 6. A conformation like a bench; a long stretch of flat ground, or a kind of natural terrace, near a lake or river. Bench mark, a projecting course at the base of a building, or round a pillar, sufficient to form a seat. Source: Websters Dictionary (01 Mar 1998) |
| bench mark | A fixed, more or less permanent reference point or object of known elevation, the U.S. Geological Survey (USGS) installs brass caps in bridge abutments or otherwise permanently sets bench marks at convenient locations nationwide, the elevations on these marks are referenced to the National Geodetic Vertical Datum (NGVD), also commonly known as mean sea level (MSL), locations of these bench marks on USGS topographic maps are shown as small triangles, since the marks are sometimes destroyed by construction or vandalism, the existence of any bench mark should be field verified before planning work which relies on a particular reference point, the USGS or local state surveyors office can provide information on the existence, exact location and exact elevation of bench marks. (09 Oct 1997) |
| bench testing | Testing of a device against specifications in a simulated (nonliving) environment. (05 Mar 2000) |
| benchmarking | Method of measuring performance against established standards of best practice. (12 Dec 1998) |