| orchitis parotidea | Orchitis associated with mumps. (05 Mar 2000) |
|---|---|
| orchitis variolosa | Orchitis complicating smallpox. (05 Mar 2000) |
| orchotomy | <surgery> The operation of cutting out or removing a testicle by the knife; castration. Origin: Gr. A testicle + to cut. Source: Websters Dictionary (01 Mar 1998) |
| orcin | <chemistry> A colourless crystalline substance, C6H3.CH3.(OH)2, which is obtained from certain lichens (Roccella, Lecanora, etc), also from extract of aloes, and artificially from certain derivatives of toluene. It changes readily into orcein. Origin: Etymology uncertain: cf. F. Orcine. Source: Websters Dictionary (01 Mar 1998) |
| orcinol | 3,5-dihydroxytoluene;the parent substance of the natural dye orcein, obtained from certain colourless lichens (Lecanora tinctoria, Rocella tinctoria) by treatment with boiling water; used as an external antiseptic in various skin diseases and in chemistry as a reagent for pentoses. Synonym: 5-methylresorcinol, orcin. (05 Mar 2000) |
| orcinol test | A test for pentoses with orcinol. Synonym: orcinol test. (05 Mar 2000) |
| orciprenaline | <chemical> A beta-adrenergic agonist used in the treatment of asthma and bronchospasms. Pharmacological action: adrenergic beta-agonists, bronchodilator agents, sympathomimetic, tocolytic agents. Chemical name: 1,3-Benzenediol, 5-(1-hydroxy-2-((1-methylethyl)amino)ethyl)- (12 Dec 1998) |
| orciprenaline sulfate | 3,5-Dihydroxy-alpha-[(isopropylamino)methyl]benzyl alcohol sulfate;a sympathomimetic bronchodilator used for the treatment of bronchial asthma and in chronic obstructive lung disease. It has relatively greater effect on b2-adrenergic receptors than b1, conferring some selectivity in relaxing bronchiolar smooth muscle as compared with cardiac stimulation. Synonym: orciprenaline sulfate. (05 Mar 2000) |