| continuous beam | In dentistry, a beam that continues over three or more supports, those supports not at the beam ends being equally free supports. (05 Mar 2000) |
|---|---|
| horizontal beam film | A radiograph made with the central axis of the X-ray beam parallel to the floor, able to show an air-fluid level. (05 Mar 2000) |
| simple beam | In dentistry, a straight beam that has only two supports, one at either end. (05 Mar 2000) |
| neutral axis of straight beam | The axis perpendicular to the plane of loading of a beam at stresses within the proportional limit; it lies at the gravity axis of the cross-section of the beam. (05 Mar 2000) |
| 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) |
| radical mastectomy, total | Breast cancer treatment involving removal of the breast, the pectoral (chest) muscles, lymph nodes (the glands ) in the armpit and associated skin and subcutaneous tissue. (12 Dec 1998) |
| parenteral nutrition, home total | The at-home administering of nutrients for assimilation and utilization by a patient whose sole source of nutrients is via solutions administered intravenously, subcutaneously or by some other non-alimentary route. (12 Dec 1998) |
| parenteral nutrition, total | The delivery of nutrients for assimilation and utilization by a patient whose sole source of nutrients is via solutions administered intravenously, subcutaneously, or by some other non-alimentary route. The basic components of tpn solutions are protein hydrolysates or free amino acid mixtures, monosaccharides, and electrolytes. Components are selected for their ability to reverse catabolism, promote anabolism, and build structural proteins. (12 Dec 1998) |
| reversal of organs, total | This condition (medically called situs inversus totalis) involves complete transposition (right to left reversal) of the thoracic and abdominal organs. The heart is not in its usual position in the left chest but is on the right. Specifically related to the heart, this is referred to as dextrocardia (literally, right-hearted). And the stomach, which is normally in the left upper abdomen, is on the right. In patients with situs inversus totalis, all of the chest and abdominal organs are reversed and appear in mirror image when examined or visualised by tests such as X-ray filming. Situs inversus totalis has been estimated to occur once in about 6-8,000 births. Situs inversus occurs in a rare abnormal condition that is present at birth (congenital) called kartagener's syndrome. (12 Dec 1998) |
| communication methods, total | Utilization of all available receptive and expressive modes for the purpose of achieving communication with the hearing impaired, such as gestures, postures, facial expression, types of voice, formal speech and non-speech systems, and simultaneous communication. (12 Dec 1998) |
| congenital total lipodystrophy | Lipodystrophy characterised by almost complete lack of subcutaneous fat, accelerated rate of growth and skeletal development during the first 3 to 4 years of life, muscular hypertrophy, cardiac enlargement, hepatosplenomegaly, hypertrichosis, renal enlargement, hypertriglyceridemia, and hypermetabolism; both autosomal dominant and X-linked varieties exist. (05 Mar 2000) |
| hysterectomy, total | Complete surgical removal of the uterus and cervix. Also called a complete hysterectomy. (12 Dec 1998) |
| near-total thyroidectomy | Removal of nearly all of each thyroid lobe leaving unresected only a small portion of gland adjacent to the entrance of the recurrent laryngeal nerve into the larynx. (05 Mar 2000) |
| total | Whole; not divided; entire; full; complete; absolute; as, a total departure from the evidence; a total loss. " Total darkness." "To undergo myself the total crime." Total abstinence. See Abstinence. Total depravity. See Original sin, under Original. Synonym: Whole; entire; complete. See Whole. Origin: F, fr. LL. Totalis, fr. L. Tolus all,whole. Cf. Factotum, Surtout, Teetotum. Source: Websters Dictionary (01 Mar 1998) |
| total anomalous pulmonary venous return | <radiology> (TAPVR) admixture lesion: cyanosis, increased pulmonary blood flow, must have L to R shunt for survival (e.g., atrial septal defect) associated with, atrial septal defect, asplenia (12 Dec 1998) |