| RU | radioulnar; rat unit; reading unit; residual urine; resin uptake; resistance unit; retrograde urogra... |
|---|---|
| RUR | resin-uptake ratio |
| T3RU | triiodothyronine resin uptake |
| chemically cured resin | A resin which contains an initiator, usually benzoyl peroxide, and an activator, usually a tertiary amine, in separate pastes. When mixed, the amine reacts with the benzoyl peroxide to form free radicals and polymerization occurs. (05 Mar 2000) |
|---|---|
| methacrylate resin | Polymerised methacrylic acid;a translucent plastic material, used for the manufacture of various medical appliances, surgical instruments, and seating components used in total joint replacement; it possesses the optical properties of fused quartz, and is readily molded when heated; formerly used in electron microscopy for embedding tissues, now superseded by epoxy resin's. (05 Mar 2000) |
| cholestyramine resin | A strongly basic anion-exchange resin in the chloride form, consisting of a copolymer of styrene and divinylbenzene with quaternary ammonium functional groups; it lowers the blood cholesterol by binding the bile acids in the intestine, thus promoting their excretion in the faeces instead of reabsorption from the bowel; used in the treatment of hypercholesterolaemia, xanthomatous biliary cirrhosis, and other forms of xanthomatosis. (05 Mar 2000) |
| gum resin | The dry exudate from a number of plants, consisting of a mixture of a gum and a resin, the former soluble in water but not alcohol, the latter soluble in alcohol but not water. (05 Mar 2000) |
| cold cure resin | Autopolymerizing resin, any resin that can be polymerised by chemical catalysis rather than by the application of heat; used in dentistry for dental restoration, denture repair, and impression trays. Synonym: activated resin, cold cure resin, cold-curing resin, quick cure resin, self-curing resin. (05 Mar 2000) |
| composite resin | A synthetic resin usually acrylic based, to which a glass or natural silica filter has been added. Used mainly in dental restorative procedures. Origin: L. Compositus, put together, fr. Compono, to put together (05 Mar 2000) |
| copolymer resin | Synthetic resin produced by joint polymerization of two or more different monomers or polymers. (05 Mar 2000) |
| polyamine-methylene resin | A synthetic acid-binding resin used as a gastric antacid. (05 Mar 2000) |
| polyester resin | Resin in which the polymers are insoluble in most organic solvents and are polymerised by light, heat, or oxygen; used in electron microscopy as a tissue embedding medium. (05 Mar 2000) |
| heat-curing resin | Resin that requires heat to initiate polymerization. (05 Mar 2000) |
| self-curing resin | Autopolymerizing resin, any resin that can be polymerised by chemical catalysis rather than by the application of heat; used in dentistry for dental restoration, denture repair, and impression trays. Synonym: activated resin, cold cure resin, cold-curing resin, quick cure resin, self-curing resin. (05 Mar 2000) |
| denture, partial, fixed, resin-bonded | A commonly used prosthesis that results in a strong, permanent restoration. It consists of an electrolytically etched cast-metal retainer that is cemented (bonded), using resins, to adjacent teeth whose enamel was previously acid-treated (acid-etched). This type of bridgework is sometimes referred to as a maryland bridge. (12 Dec 1998) |
| direct composite resin restoration | A direct restoration made by inserting a plastic mix of auto or light-polymerised resins in a cavity prepared in a tooth. Synonym: direct composite resin restoration. (05 Mar 2000) |
| direct filling resin | An autopolymerizing resin especially designed as a dental restorative material. (05 Mar 2000) |
| direct resin restoration | A direct restoration made by inserting a plastic mix of auto or light-polymerised resins in a cavity prepared in a tooth. Synonym: direct composite resin restoration. (05 Mar 2000) |