| TD | the time required to double the number of cells in a given population; thermal death time |
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| TDP | thermal death point; thoracic duct pressure; thymidine diphosphate; total degradation products |
| TDT | terminal deoxynucleotidyltransferase; thermal death time; tone decay test; tumor doubling time |
| TEA | temporal external artery; tetraethylammonium; thermal energy analyzer; thromboendarterectomy; total ... |
| TGD | thermal-green dye |
| Tesla current | An alternating electric current having a frequency of 10,000 or more per second; it produces no muscular contractions and does not affect the sensory nerves. Synonym: d'Arsonval current, Tesla current. (05 Mar 2000) |
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| eddy current | <radiobiology> Electric current induced inside a conductor when the conductor (a) moves through a nonuniform magnetic field, or (b) experiences a change in the magnetic flux through its surface. (09 Oct 1997) |
| eddy-current loss | <radiobiology> Energy loss due to eddy currents circulating in a resistive material. (09 Oct 1997) |
| toroidal current | <radiobiology> Current flowing in the toroidal direction (the long way) around a torus. (As distinct from poloidal currents flowing through the centre of the torus and around to the outside, the short way.) (09 Oct 1997) |
| labile current | An electrical current applied to the body by means of electrodes that are constantly shifted about. (05 Mar 2000) |