| RH | radiant heat; radiation hybrid; radiological health; reactive hyperemia; recurrent herpes; regulator... |
|---|---|
| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
| PMI | 1) Point of Maximal Impulse(= Intensity) 2) Proportional Mortality Index;... |
| CIDS | cellular immunity deficiency syndrome; circular intensity differential scattering; continuous insuli... |
| I-D | intensity-duration |
| DI | Dose Intensity |
|---|---|
| FI | Fluorescence intensity |
| HIFU | High Intensity Focused Ultrasound |
| HITS | High Intensity Transient Signals |
| I | Intensity |
| radiant intensity | The luminous flux per unit solid angle in a given direction. Synonym: candle-power, radiant intensity. (05 Mar 2000) |
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| radiant | 1. Emitting or proceeding as from a center; rays; radiating; radiate. 2. Especially, emitting or darting rays of light or heat; issuing in beams or rays; beaming with brightness; emitting a vivid light or splendor; as, the radiant sun. "Mark what radiant state she spreads." (Milton) 3. Beaming with vivacity and happiness; as, a radiant face. 4. Giving off rays; said of a bearing; as, the sun radiant; a crown radiant. 5. <botany> Having a raylike appearance, as the large marginal flowers of certain umbelliferous plants; said also of the cluster which has such marginal flowers. <physics> Radiant energy See Radiant. Origin: L. Radians, -antis, p. Pr. Of radiare to emit rays or beams, fr. Radius ray: cf. F. Radiant. See Radius, Ray a divergent line. 1. <optics> The luminous point or object from which light emanates; also, a body radiating light brightly. 2. <geometry> A straight line proceeding from a given point, or fixed pole, about which it is conceived to revolve. 3. <astronomy> The point in the heavens at which the apparent paths of shooting stars meet, when traced backward, or whence they appear to radiate. Source: Websters Dictionary (01 Mar 1998) |
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| radiant energy | Energy contained in light rays or any other form of radiation. (05 Mar 2000) |
| radiant heat | Heat given off from any body in the form of waves, similar to light waves but of greater wavelength. (05 Mar 2000) |
| absolute intensity threshold acuity | The minimal light that can be seen. (05 Mar 2000) |
| dose intensity | In chemotherapy, the total amount of drug delivered in a one-week period. Can be given all at once or over a period of several days. (16 Dec 1997) |
| intensity | The condition or quality of being intense, a high degree of tension, activity or energy. Origin: L. Intensus = intense, tendere = to stretch (18 Nov 1997) |
| intensity of sound | The objective measurement of the amplitude of vibration of a sound wave. (05 Mar 2000) |
| unit of magnetic field intensity | See: gauss, tesla. (05 Mar 2000) |
| luminous intensity | The luminous flux per unit solid angle in a given direction. Synonym: candle-power, radiant intensity. (05 Mar 2000) |
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