| absorbable gelatin film | A sterile, nonantigenic, absorbable, water-insoluble, thin sheet of gelatin prepared by drying a gelatin-formaldehyde solution on plates; used in the closure and repair of defects in membranes such as the dura mater or the pleura; it undergoes absorption over a period of 1 to 6 months. (05 Mar 2000) |
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| absorbable gelatin sponge | A sterile, absorbable, water-insoluble gelatin base sponge, used to control capillary bleeding in surgical operations; it is left in situ and is absorbed in from 4 to 6 weeks. (05 Mar 2000) |
| absorbable surgical suture | A surgical suture material prepared from a substance that can be digested by body tissues and is therefore not permanent; it is available in various diameters and tensile strengths, and can be treated to modify its resistance to absorption and be impregnated with antimicrobial agents. (05 Mar 2000) |
| gelatin sponge, absorbable | <chemical> Sterile, gelatin-base surgical sponge applied topically as an adjunct to haemostasis when the control of bleeding by conventional procedures is ineffective to reduce capillary ooze or is impractical. Pharmacological action: haemostatics. (12 Dec 1998) |
| cellulose | <plant biology> A straight chain polysaccharide composed of _(1-4) linked glucose subunits. A major component of plant cell walls where it is found as microfibrils laid down in orthogonal layers. (13 Nov 1997) |
| cellulose acetate | A polymer commonly used as a support medium for electrophoresis. (05 Mar 2000) |
| cellulose acetate phthalate | A reaction product of phthalic anhydride and a partial acetate ester of cellulose; used as a tablet-coating agent. (05 Mar 2000) |
| cellulose, oxidised | <chemical> A cellulose of varied carboxyl content retaining the fibrous structure. It is used as a local haemostatic and as a matrix for normal blood coagulation. Pharmacological action: haemostatics. Chemical name: Cellulose, 6-carboxy (12 Dec 1998) |
| cellulose synthase | <enzyme, plant biology> A enzyme which assembles sugar molecules into cellulose (a major component of the cell walls of plant cells). (13 Nov 1997) |
| cellulose tape technique | Use of a piece of transparent cellulose tape applied to a glass slide to obtain perianal samples for identification of pinworm eggs. (05 Mar 2000) |
| chromatography, deae-cellulose | A type of ion exchange chromatography using diethylaminoethyl cellulose (deae-cellulose) as a positively charged resin. (12 Dec 1998) |
| microcrystalline cellulose | Purified, partially depolymerised cellulose, prepared by treating alpha-cellulose, obtained as a pulp from fibrous plant material, with mineral acids; used as a tablet diluent. (05 Mar 2000) |
| CM-cellulose | <chemical> Polycarboxymethyl ether of cellulose. It is used as an emulsifier, thickener, suspending agent, etc., in cosmetics and pharmaceuticals; in research as a culture medium; in chromatography as a stabiliser for reagents; and therapeutically as a bulk laxative with antacid properties. Pharmacological action: cathartic, pharmaceutic aid. Chemical name: Cellulose, carboxymethyl ether, sodium salt (12 Dec 1998) |
| sodium carboxymethyl cellulose | The sodium salt of a polycarboxymethyl ether of cellulose; used as a laxative. (05 Mar 2000) |
| deae-cellulose | <chemical> Diethylaminoethylcellulose. Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications. Chemical name: Cellulose, 2-(diethylamino)ethyl ether (12 Dec 1998) |