| FID | flame ionization detector; free induction decay; fungal immunodiffusion |
|---|---|
| FIS | forced inspiratory spirogram; free induction signal |
| IDI | immunologically detectable insulin; induction-delivery interval; inter-dentale inferius |
| ind | indirect; induction |
| IOL | induction of labor; intraocular lens |
| homeogenetic induction | The induction of an undifferentiated (general, all-purpose) cell to differentiate (become specialised) by a nearby cell which has already differentiated. This is most often observed in plant cells. (09 Oct 1997) |
|---|---|
| homopolar generator | <physics> A direct-current generator in which the poles presented to the armature are all of the same polarity, so that the voltage generated in the active conductors has the same polarity at all times. A pure direct current is thus produced without commutation. (09 Oct 1997) |
| pulse generator | A device that produces an electrical discharge with a regular or rhythmic wave form in which the electromotive force varies in a specific pattern in relation to time; e.g., in an electronic pacemaker, it produces an electric discharge at regular intervals, and these intervals may be modified by a sensory circuit which can reset the time-base for subsequent discharge on the basis of other electrical activity, such as that produced by spontaneous cardiac beating. (05 Mar 2000) |
| spinal induction | The manner in which one sensory stimulus lowers the threshold for another. (05 Mar 2000) |
| standby pulse generator | A generator which suppresses its output in response to natural ventricular activity but which, in the absence of such activity, functions as an asynchronous pulse generator. Synonym: demand pulse generator, standby pulse generator. (05 Mar 2000) |
| neural induction | In vertebrates the formation of the nervous system from the ectoderm of the early embryo as a result of a signal from the underlying mesoderm of the archenteron roof, also called primary neural induction. The mechanism of neural induction is not yet clear. (18 Nov 1997) |
| demand pulse generator | A generator which suppresses its output in response to natural ventricular activity but which, in the absence of such activity, functions as an asynchronous pulse generator. Synonym: demand pulse generator, standby pulse generator. (05 Mar 2000) |
| induction | The act or process of inducing or causing to occur, especially the production of a specific morphogenetic effect in the developing embryo through the influence of evocators or organisers or the production of anaesthesia or unconsciousness by use of appropriate agents. Origin: L. Inductio (18 Nov 1997) |
| induction chemotherapy | Use of chemotherapy as initial treatment before surgery or radiotherapy of a malignancy. (05 Mar 2000) |
| induction period | The period required for a specific agent to produce a disease; the interval from the causal action of a factor to initiation of disease, e.g., the interval between exposure to radiation and the onset of leukaemia; the interval between an initial injection of antigen and the appearance of demonstrable antibodies in the blood. (05 Mar 2000) |
| induction therapy | Initial intensive course of chemotherapy that is designed to wipe out abnormal cells and allow regrowth of normal cells. (16 Dec 1997) |
| ovulation induction | Techniques for the artifical induction of ovulation. (12 Dec 1998) |
| electromagnetic induction | Electromagnetic waves propagated by induction in an electromagnetic field. (05 Mar 2000) |
| embryonic induction | The induction of differentiation in one tissue as a result of proximity to another tissue arising, for example: during gastrulation. One of the best known examples is the induction of the neural tube in the ectoderm by the underlying chordo mesoderm. Although the information to form the tube is present in the competent determined ectoderm, it must be elicited by the inducing tissue. In some cases it is known that cell cell contact between epithelium and mesenchyme is necessary. (18 Nov 1997) |
| enzyme induction | An increase in enzyme secretion in response to an environmental signal. The classic example is the induction of _ galactosidase in E. Coli. (18 Nov 1997) |