| ammonium compounds | Inorganic and organic compounds that contain the hypothetical radical nh4. (12 Dec 1998) |
|---|---|
| quaternary | 1. Fourth in order. 2. Containing four elements or groups. Origin: L. Quaternarius, from quattuor = four (18 Nov 1997) |
| quaternary carbon atom | An atom of carbon to which four other carbon atom's are attached. (05 Mar 2000) |
| quaternary structure | The three-dimensional structure of a complex protein, this especially refers to the way the polypeptide subunits fit together. (09 Oct 1997) |
| quaternary syphilis | Any condition indirectly due to syphilis. Synonym: metasyphilis, parasyphilosis, quaternary syphilis. (05 Mar 2000) |
| aluminum ammonium sulfate | AlNH4(SO4)2;an astringent. (05 Mar 2000) |
| ammonium | <chemistry> A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals. See: Ammonia. Source: Websters Dictionary (01 Mar 1998) |
| ammonium benzoate | C6H5COONH4;a stimulant, diuretic, urinary antiseptic, and antirheumatic. (05 Mar 2000) |
| ammonium bromide | A sedative. (05 Mar 2000) |
| ammonium carbonate | A cardiac and respiratory stimulant and carminative expectorant. (05 Mar 2000) |
| ammonium chloride | <chemical> Ammonium chloride, (nh4)cl. A systemic acidifying agent that has been used as a diuretic and an expectorant. Chemical name: Ammonium chloride ((NH4)Cl) (12 Dec 1998) |
| ammonium ferric sulfate | An astringent and styptic. Synonym: ammonium ferric sulfate, ferric alum, iron alum. (05 Mar 2000) |
| ammonium ichthosulfonate | Sulfonated bitumen; ammonium sulfoichthyolate;a viscous fluid, reddish brown to brownish black in colour, with a strong, characteristic, empyreumatic odour, soluble in water and in glycerin; obtained by the destructive distillation of certain bituminous schists, sulfonating the distillate and neutralizing the product with ammonia. It is used in skin disorders; its beneficial effect is due to its mild irritant, stimulant, antiseptic, and analgesic action; has been used in 10 and 20 percent concentration in an ointment ("drawing salve"). Synonym: ammonium ichthosulfonate. (05 Mar 2000) |
| ammonium iodide | An expectorant. (05 Mar 2000) |
| ammonium mandelate | <chemical> Mandelic acid ammonium salt; a urinary antiseptic. (05 Mar 2000) |