| MDS | Myelo-Dysplastic Syndrome = Refractory (Dysmyelopoietic) Anemia = (Id... |
|---|---|
| AERP | antegrade effective refractory period; atrial effective refractory period |
| RA | radioactive; ragocyte; ragweed antigen; rapidly adapting [receptors]; reactive arthritis; reciprocal... |
| IMDS | Idiopathic Myelo-Dysplastic Syndrome = Preleukemia = Refractory Anemi... |
| RA | 1) Refractory Anemia 2) Rheumatoid Arthritis ? Arthritis 3... |
| ELF | Epithelial lining fluid |
|---|---|
| SLC | Synovial lining cells |
| ARMS | Amplification Refractory Mutation System |
| AERP | Atrial effective refractory period |
| ERP | Effective refractory period |
| refractory lining | A lining, usually of ceramic, capable of resisting and maintaining high temperatures. (05 Dec 1998) |
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| dental cavity lining | <dentistry> An inner coating, as of varnish or other protective substance, to cover the dental cavity wall. It is usually a resinous film-forming agent dissolved in a volatile solvent, or a suspension of calcium hydroxide in a solution of a synthetic resin. The lining seals the dentinal tubules and protects the pulp before a restoration is inserted. (12 Dec 1998) |
|---|---|
| synovial lining | The lining of the joint. (12 Dec 1998) |
| lining | A coating applied to the pulpal wall(s) of a restorative dental preparation to protect the pulp from thermal or chemical irritation; usually a vehicle containing a varnish, resin, and/or calcium hydroxide. (05 Mar 2000) |
| lining cell | The cell's lining the lymphatic sinuses of lymph nodes and the blood sinuses of bone marrow. Synonym: lining cell. Origin: L. Littoralis, the seashore (05 Mar 2000) |
| lining epithelium | An epithelium lining a duct, cavity or vessel, that is not particularly specialised for secretion or as a mechanical barrier. Not a precise classification. (18 Nov 1997) |
| absolute refractory period | The period following excitation when no response is possible regardless of the intensity of the stimulus. (05 Mar 2000) |
| anaemia, refractory | Anaemia (a shortage of red blood cells) unresponsive to treatment. (12 Dec 1998) |
| anaemia, refractory, with excess of blasts | Chronic refractory anaemia with granulocytopenia, and/or thrombocytopenia. Myeloblasts and progranulocytes constitute 5 to 40 percent of the nucleated marrow cells. (12 Dec 1998) |
| refractory | Not readily yielding to treatment. Origin: L. Refractorius (18 Nov 1997) |
| refractory anaemia | <haematology> A form of myelodysplasia which primarily affects the red cell production by the bone marrow. In some cases the developing red cells show an internal ring of iron granules. These cells are called sideroblasts. Refractory anaemia and refractory anaemia with sideroblasts are the most common forms of myelodysplasia. Origin: Gr. Haima = blood (13 Nov 1997) |
| refractory anaemia with excess blasts | <haematology> A form of myelodysplasia characterised by the build up of immature white blood cells (blasts) in the bone marrow. If the immature cells are particularly numerous it may indicate a chance of transformation to acute leukaemia and the condition is called refractory anaemia with excess blasts in transformation (RAEBt). Acronym: RAEB (13 Nov 1997) |
| refractory cast | A cast made of material that will withstand the high temperatures of metal casting or soldering without disintegrating. Synonym: investment cast. (05 Mar 2000) |
| refractory flask | A metal tube in which a refractory mold is made for casting metal dental restorations or appliances. Synonym: casting flask, casting ring. (05 Mar 2000) |
| refractory period | <neurology, physiology> most commonly used in reference to the interval (typically 1ms) after the passage of an action potential during which an axon is incapable of responding to another. This is caused by inactivation of the sodium channels after opening. The maximum frequency at which neurons can fire is thus limited to a few hundred Hertz. An analogous refractory period occurs in individuals of Dictyostelium discoideum, which are insensitive to extracellular cyclic AMP immediately after a pulse of cAMP has been secreted. The term can be applied to any system where a similar insensitive period follows stimulation. (18 Nov 1997) |
| refractory period of electronic pacemaker | The time required to restore full sensitivity after detecting cardiac activity or delivering a pacing impulse. (05 Mar 2000) |
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