| neutral beam injection | <radiobiology> This is one of the fundamental plasma heating methods. A particle accelerator is used to create fast ion beams (the particle energies are on the order of 100 keV), the ion beam is then passed through a neutral gas region, where the ions neutralise via charge-exchange reactions with the neutral gas. The neutralised beam is then injected into a magnetically confined plasma. The neutral atoms are unaffected (not confined) by the magnetic field, but ionize as they penetrate into the plasma. The high-energy ions then transfer some of their energy to the plasma particles in repeated collisions, and heat the plasma. (09 Oct 1997) |
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| subcutaneous injection | The delivery of a medication into the subcutaneous tissues via injection (for example insulin). (27 Sep 1997) |
| depot injection | An injection of a substance in a vehicle that tends to keep it at the site of injection so that absorption occurs over a prolonged period. (05 Mar 2000) |
| injection | <procedure> The act of forcing a liquid into a part, as into the subcutaneous tissues, the vascular tree or an organ. Compare: infusion. Origin: L. Injectio, from inicere = to throw into (18 Nov 1997) |
| injection flask | A denture flask designed so as to permit the forced flow of denture base material from a reservoir into the mold after the flask is closed and during curing. (05 Mar 2000) |
| injection mass | Coloured solutions or suspensions injected into the vascular system to render vessels and their walls prominent; useful for gross preparations and for study under low magnification after clearing; most fluids contain warm gelatin and the colouring materials are carmine, Berlin blue, or carbon. (05 Mar 2000) |
| injection molding | The adaptation of a plastic material to the negative form of a closed mold by forcing the material into the mold through appropriate gateways. See: compression molding. (05 Mar 2000) |
| insulin injection | A preparation that may contain 20, 40, 80, 100, or 500 USP insulin units per ml, although the trend is toward standardizing all insulin preparations at 100 units per ml; it is administered subcutaneously, occasionally intravenously, and has a rapid onset of action, has a brief duration (5 to 7 hours), and is compatible for mixing with long-acting insulin preparations; used in the treatment of diabetic acidosis and insulin coma. Synonym: regular insulin injection. (05 Mar 2000) |
| intracytoplasmic sperm injection | <gynaecology> The direct injection of a single sperm into an egg. (09 Oct 1997) |
| intramuscular injection | <technique> A technique to deliver a medication into muscle tissue for its eventual absorption into the systemic circulation. Smaller volume intramuscular injections may be given into the deltoid, but larger volumes are usually given into the gluteus muscle. (27 Sep 1997) |
| intrathecal injection | Injection of drugs into the spinal fluid to prevent or treat CNS leukaemia or lymphoma. (13 Nov 1997) |
| intravenous injection | <pharmacology> The giving of drugs into a vein through a syringe. (30 Mar 1998) |
| intraventricular injection | The introduction of materials for diffusion throughout the ventricular and subarachnoid space by means of ventricular puncture. (05 Mar 2000) |
| test injection | Intravenous injection of a few milliliters of radiographic contrast medium to screen for allergic or idiosyncratic responses. (05 Mar 2000) |
| jet injection | Hypodermic injection of drugs by a jet injector. (05 Mar 2000) |