| ID | identification; iditol dehydrogenase; immunodeficiency; immunodiffusion; immunoglobulin deficiency; ... |
|---|---|
| FT | Fallot tetralogy; false transmitter; family therapy; fast twitch; fatigue trial; fibrous tissue; fin... |
| MTA | malignant teratoma, anaplastic; medical technical assistant; medical technology assessment; metatars... |
| ST | esotropia; scala tympani; scaphotrapezoid; sclerotherapy; sedimentation time; semitendinosus; sensor... |
| STF | serum thymus factor; slow-twitch fiber; special tube feeding; specialized treatment center; stefin; ... |
| ILB | Initial Lung Burden |
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| ISI | Initial Slope Index |
| ICD | initial claudication distance |
| IDV-G | initial distribution volume of glucose |
| I.S. | initial segment |
| twitch | 1. The act of twitching; a pull with a jerk; a short, sudden, quick pull; as, a twitch by the sleeve. 2. A short, spastic contraction of the fibres or muscles; a simple muscular contraction; as, convulsive twitches; a twitch in the side. 3. <veterinary> A stick with a hole in one end through which passes a loop, which can be drawn tightly over the upper lip or an ear of a horse. By twisting the stick the compression is made sufficiently painful to keep the animal quiet during a slight surgical operation. Source: Websters Dictionary (01 Mar 1998) |
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| twitch grass | <botany> See Quitch grass. Source: Websters Dictionary (01 Mar 1998) |
| twitch muscle | <physiology> Striated muscle innervated by a single motoneuron and having an electrically excitable membrane that exhibits an all or none response (c.f. Tonic muscle): in mammals almost all skeletal muscles are twitch muscles. Physiologists often divide muscles into fast and slow twitch types, the fast twitch muscles being associated with fast motor units. (18 Nov 1997) |
| Wilder's law of initial value | The direction of response of a body function to any agent depends to a large degree on the initial level of that function. Synonym: law of initial value. (05 Mar 2000) |
| initial | Pertaining to the very first stage of any process. Origin: L. Initialis, from initium = beginning (18 Nov 1997) |
| initial cell | Actively dividing plant cell in a meristem. at each division one daughter cell remains in the meristem as a new initial cell and the other is added to the growing plant body. Animal equivalent is a stem cell (potentially confusing terminology in plants). (18 Nov 1997) |
| initial contact | The first meeting of opposing teeth upon elevation of the mandible toward the maxillae, the initial occlusal contact of opposing teeth when the jaw is closed. (05 Mar 2000) |
| initial dose | A comparatively large dose given at the beginning of treatment to get the patient under the influence of the drug. Synonym: loading dose. (05 Mar 2000) |
| initial haematuria | The presence of blood only in the first fraction of voided urine, usually indicating a urethral or prostatic source of bleeding. (05 Mar 2000) |
| initial heat | The first burst of heat produced after the beginning of a muscle twitch, described by A. V. Hill. (05 Mar 2000) |
| initial rate | The rate of a reaction, e.g., an enzyme-catalyzed reaction, at the early stages of the reaction such that the product(s) concentrations have not risen to a level to significantly affect the observable rate; typically, initial velocities are observed when less than 10% of the reaction's approach toward equilibrium has occurred. Synonym: initial rate. (05 Mar 2000) |
| initial velocity | The rate of a reaction, e.g., an enzyme-catalyzed reaction, at the early stages of the reaction such that the product(s) concentrations have not risen to a level to significantly affect the observable rate; typically, initial velocities are observed when less than 10% of the reaction's approach toward equilibrium has occurred. Synonym: initial rate. (05 Mar 2000) |
| law of initial value | The direction of response of a body function to any agent depends to a large degree on the initial level of that function. Synonym: law of initial value. (05 Mar 2000) |
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