| BDR | background diabetic retinopathy |
|---|---|
| CAR | Canadian Association of Radiologists; cancer-associated retinopathy; cardiac ambulation routine; cel... |
| DR | degeneration reaction; delivery room; deoxyribose; diabetic retinopathy; diagnostic radiology; digit... |
| HAR | high-altitude retinopathy |
| HR | heart rate; hemorrhagic retinopathy; high resolution; higher rate; histamine receptor; hormonal resp... |
| electric dermatome | See: electrodermatome. (05 Mar 2000) |
|---|---|
| electric field | <radiobiology> A property of a patch of space which causes the acceleration of electric charges located at that patch of space. The acceleration is given by a = qE/m, where q is the charge, E the electric field vector, and m the mass of the particle. Electric fields are generated by the presence of charges and/or the time variation of magnetic fields (09 Oct 1997) |
| electric fish | Fishes which generate an electric discharge. The voltage of the discharge varies from weak to strong in various groups of fish. Electric organ and electroplax are of prime interest in this group. They occur in more than one family. (12 Dec 1998) |
| electric impedance | The opposition to the flow of an alternating current, which is the vector sum of ohmic resistance plus additional resistance, if any, due to induction, to capacity, or to both. (12 Dec 1998) |
| electric injuries | Injuries caused by electric currents. The concept excludes electric burns (burns, electric), but includes accidental electrocution and electric shock. (12 Dec 1998) |
| electric organ | In about 250 species of electric fishes, modified muscle fibres forming disklike multinucleate plates arranged in stacks like batteries in series and embedded in a gelatinous matrix. A large torpedo ray may have half a million plates. Muscles in different parts of the body may be modified, i.e., the trunk and tail in the electric eel, the hyobranchial apparatus in the electric ray, and extrinsic eye muscles in the stargazers. Powerful electric organs emit pulses in brief bursts several times a second. They serve to stun prey and ward off predators. A large torpedo ray can produce of shock of more than 200 volts, capable of stunning a human. (storer et al., general zoology, 6th ed, p672) (12 Dec 1998) |
| electric shock | A sudden violent impression caused by the passage of a current of electricity through any portion of the body. (05 Mar 2000) |
| electric sleep | A condition of convulsions and unconsciousness induced by the passage of an electric current through the brain. (05 Mar 2000) |
| electric stimulation therapy | Application of electric current in treatment without the generation of perceptible heat. It includes electric stimulation of nerves or muscles, passage of current into the body, or use of interrupted current of low intensity to raise the threshold of the skin to pain. (12 Dec 1998) |
| electric wiring | An arrangement of wires distributing electricity. (12 Dec 1998) |
| transcutaneous electric nerve stimulation | Electrical stimulation of nerves and/or muscles to relieve pain; it is used less frequently to produce anaesthesia. The optimal placements of electrodes or "trigger points" may correspond with acupuncture analgesia points. Tens is sometimes referred to as acupuncture-like when using a low frequency stimulus. (12 Dec 1998) |
| arteriosclerotic retinopathy | Retinopathy distinguished by attenuated retinal arterioles with increased tortuosity, copper-or silver-wire appearance, perivascular sheathing, irregularity of lumen and scattered small haemorrhages, and small, sharp-edged deposits without surrounding oedema. (05 Mar 2000) |
| background retinopathy | <ophthalmology, pathology> Early stage of diabetic retinopathy, it usually does not impair vision. Origin: Gr. Pathos = disease (09 Oct 1997) |
| macular retinopathy | Any pathological condition of the macula lutea. Synonym: macular retinopathy. (05 Mar 2000) |
| venous-stasis retinopathy | A uniocular retinopathy associated with occlusion of the central retinal vein; a nonischemic central retinal vein occlusion. (05 Mar 2000) |