| US/LS | upper strength/lower strength [ratio] |
|---|---|
| OCP | octacalcium phosphate; ocular cicatricial pemphigoid; oral case presentation; oral contraceptive pil... |
| OET | oral endotracheal tube; oral esophageal tube |
| OHI | Occupational Health Institute; operative hypertension indicator; oral hygiene index; Oral Hygiene In... |
| ABY | acid bismuth yeast [medium] |
| strength-duration curve | A graph relating the intensity of an electrical stimulus to the length of time it must flow to be effective. See: chronaxie, rheobase. (05 Mar 2000) |
|---|---|
| ionic strength | Symbolised as g/2 or I and set equal to 0.5σmizi2, where mi equals the molar concentration and zi the charge of each ion present in solution; if molar concentrations (ci) are used instead of molality (and the solution is dilute), then I == 0.5(1/ρo)σcizi2 where ρo is the density of the solvent; a number of biochemically important events (e.g., protein solubility and rates of enzyme action) vary with the ionic strength of a solution. (05 Mar 2000) |
| tensile strength | The maximum stress a material subjected to a stretching load can withstand without tearing. (12 Dec 1998) |
| yield strength | The amount of stress at which a permanent (plastic) deformation in a component becomes measurable (usually taken as 0.2% permanent strain). (05 Mar 2000) |
| ultimate strength | The maximum stress achieved prior to failure of a component on a single application of the load. (05 Mar 2000) |
| fatigue strength | The stress level below which a particular component will survive an indefinite number of load cycles (typically about 50% of the ultimate strength of the component). (05 Mar 2000) |
| aluminum bismuth oxide | A gastric antacid. Synonym: aluminum bismuth oxide. (05 Mar 2000) |
| bismuth | <chemistry> One of the elements; a metal of a reddish white colour, crystallizing in rhombohedrons. It is somewhat harder than lead, and rather brittle; masses show broad cleavage surfaces when broken across. It melts at 507 deg Fahr, being easily fused in the flame of a candle. It is found in a native state, and as a constituent of some minerals. Specific gravity 9.8. Atomic weight 207.5. Symbol Bi. Chemically, bismuth (with arsenic and antimony is intermediate between the metals and nonmetals; it is used in thermo-electric piles, and as an alloy with lead and tin in the fusible alloy or metal. Bismuth is the most diamagnetic substance known. Bismuth glance, bismuth sulphide; bismuthinite. Bismuth ocher, a native bismuth oxide; bismite. Origin: Ger. Bismuth, wismuth: cf. F. Bismuth. Source: Websters Dictionary (01 Mar 1998) |
| bismuth aluminate | A gastric antacid. Synonym: aluminum bismuth oxide. (05 Mar 2000) |
| bismuth ammonium citrate | Ammoniocitrate of bismuth; an intestinal astringent. (05 Mar 2000) |
| bismuth carbonate | (BiO)2CO3;used for the same purposes as bismuth subnitrate, but has lower toxicity. Synonym: bismuth carbonate, bismuth oxycarbonate, bismuthyl carbonate. (05 Mar 2000) |
| bismuth chloride oxide | BiOCl;basic bismuth chloride, used for the same purposes as the subnitrate. Synonym: bismuth chloride oxide, bismuthyl chloride. (05 Mar 2000) |
| bismuth citrate | Used in the making of bismuth and ammonium citrate. (05 Mar 2000) |
| bismuth hydroxide | (Bi(OH)3), used in detecting reducing sugars. (05 Mar 2000) |
| bismuth iodide | BiI3;used in electron microscopy to reveal synapses. Synonym: bismuth triiodide. (05 Mar 2000) |