| tachycardia, supraventricular | A generic expression for any tachycardia that originates above the bundle of his. (12 Dec 1998) |
|---|---|
| tachycardia, ventricular | An abnormal heart rhythm that is rapid, regular and originates from an area of the ventricle, the lower chamber of the heart. Ventricular tachycardias are life threatening arrhythmias most commonly associated with heart attacks or scarring of the heart muscle from previous heart attack. (12 Dec 1998) |
| tachycardia window | In paroxysmal tachycardia of the reentry type, the interval of time (the window) between the earliest and latest premature activation that can excite the paroxysm. (05 Mar 2000) |
| ectopic tachycardia | A tachycardia originating in a focus other than the sinus node, e.g., atrial, A-V junctional, or ventricular tachycardia. (05 Mar 2000) |
| essential tachycardia | Persistent rapid action of the heart due to no discoverable organic lesion. (05 Mar 2000) |
| junctional tachycardia | Supraventricular tachycardia arising from the atrioventricular junction (formerly called nodal tachycardia). (05 Mar 2000) |
| foetal tachycardia | <obstetrics, paediatrics> A foetal heart rate of 160 or more beats per minute. (05 Mar 2000) |
| active movement | Movement effected by the organism itself, unaided by external influences. (05 Mar 2000) |
| adversive movement | A rotation of the eyes, head, or trunk about the long axis of the body. (05 Mar 2000) |
| ameboid movement | The movement characteristic of leukocytes and protozoan organisms of the superclass Rhizopoda. See: streaming movement, filopodium, lobopodium. (05 Mar 2000) |
| amoeboid movement | <cell biology> Crawling movement of a cell brought about by the protrusion of pseudopods at the front of the cell (one or more may be seen in monopodial or polypodial amoebae, respectively). The pseudopods form distal anchorages with the surface. (05 Feb 1998) |
| assistive movement | In massage, a movement which the partially paralysed muscle of the patient would be unable to perform unaided but which is effected with the graduated assistance of the operator. (05 Mar 2000) |
| Bennett movement | The bodily lateral movement or lateral shift of the mandible during a laterotrusive movement. (05 Mar 2000) |
| bowel movement | Defecation. (05 Mar 2000) |
| brownian movement | Erratic, nondirectional, zigzag movement observed by ultramicroscope in certain colloidal solutions and by microscope in suspensions of light particulate matter that results from the jostling or bumping of the larger particles by the molecules in the suspending medium which are regarded as being in continuous motion. Synonym: brownian motion, brownian-Zsigmondy movement, molecular movement, pedesis. (05 Mar 2000) |