| two-ranked | <botany> Alternately disposed on exactly opposite sides of the stem so as to from two ranks; distichous. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| two-sided | 1. Having two sides only; hence, double-faced; hypocritical. 2. <biology> Symmetrical. Source: Websters Dictionary (01 Mar 1998) |
| two-step exercise test | A test used mainly for coronary insufficiency; significant depression of RS-T in the electrocardiogram is considered abnormal and suggests coronary insufficiency. (05 Mar 2000) |
| two-step procedure | <surgery> When surgical biopsy and breast surgery are performed in two separate surgeries. (09 Oct 1997) |
| two-stream amplifier | <radiobiology> Microwave amplifier based on the two-stream instability. (09 Oct 1997) |
| two-stream instability | <radiobiology> Instability which can develop when a stream of particles of one type has a velocity distribution with its peak well separated from that of another type of particle through which it is flowing. A stream of energetic electrons passing through a cold plasma can, for example: excite ion waves which will grow rapidly in magnitude at the expense of the kinetic energy of the electrons. (09 Oct 1997) |
| two-sympathin theory | A theory, now obsolete, advanced by Cannon and Rosenblueth that two different types of substances (sympathin E and I) diffuse into circulation when adrenergic nerves are stimulated, although the mediator itself is the same. (05 Mar 2000) |
| two-tail test | A statistical test based on the assumption that the data are distributed in both directions from some central value. (05 Mar 2000) |
| two-way catheter | A catheter with two lumens, allowing irrigation and aspiration. Synonym: two-way catheter. (05 Mar 2000) |
| hernia, diaphragmatic, traumatic | Protrusion of some part of the abdominal or retroperitoneal structures through the diaphragm into the thorax, occurring as a result of injury, usually to the abdomen. (12 Dec 1998) |
| shock, traumatic | Any shock produced by trauma. (12 Dec 1998) |
| dental occlusion, traumatic | An occlusion resulting in overstrain and injury to teeth, periodontal tissue, or other oral structures. (12 Dec 1998) |
| traumatic | <surgery> Of, relating to or resulting from a trauma, wound or injury, whether physical or psychological. Origin: L. Traumaticus from Gr. Traumaticos, from trauma = wound (18 Nov 1997) |
| traumatic amenorrhoea | Absence of menses because of endometrial scarring or cervical stenosis resulting from injury or disease. (05 Mar 2000) |
| traumatic amnesia | The loss or disturbance of memory following an insult or injury to the brain of the type that accompanies a head injury, or excessive use of alcohol, or following the cessation of alcohol ingestion or other psychoactive drugs; or loss or disturbance of memory of the type seen in hysteria and other forms of dissociative disorders. (05 Mar 2000) |