| SFD | silo filler's disease; skin-film distance; small for dates; spectral frequency distribution |
|---|---|
| TFT | thin-film transistor; thrombus formation time; thyroid function test; tight filum terminale; trifluo... |
| UF | film unsharpness; ultrafiltrate; ultrafiltration; ultrafine; ultrasonic frequency; universal feeder;... |
| DC | 1) Direct Current 2) Diffusion Capacity |
| ID | 1) Immuno-Diffusion 2) Intra-Dermal; 피내로 3) Intra-Dural... |
| RID | Radial Immune Diffusion |
|---|---|
| AGD | agar gel diffusion |
| ADCw | apparent diffusion coefficient of water |
| D.D. | double diffusion |
| kub film | An X-ray showing the kidney, ureter, and bladder. This is in reality a plain abdominal x-ray and includes other structures such as the diaphragm above and the pelvis below. (12 Dec 1998) |
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| fick's law of diffusion | The principle that a substance put into solution will tend to diffuse towards constant concentration throughout the solution. (09 Oct 1997) |
| Fick's laws of diffusion | The direction of movement of solutes by diffusion is always from a higher to a lower concentration and the diffusive flux JA of solute A across a plane at x is proportional to the concentration gradient of A at x; i.e., JA = -D(CA/x), the increase of concentration of solute A with time, CA/t, is directly proportional to the change in the concentration gradient, i.e., CA/t = D(fl2/x2). (05 Mar 2000) |
| film | 1. A thin skin; a pellicle; a membranous covering, causing opacity; hence, any thin, slight covering. "He from thick films shall purge the visual ray." (Pope) 2. A slender thread, as that of a cobweb. "Her whip of cricket's bone, the lash of film." (Shak) Origin: AS. Film skin, fr. Fell skin; akin to fylmen membrane, OFries. Filmene skin. See Fell skin. To cover with a thin skin or pellicle. "It will but skin and film the ulcerous place." (Shak) Source: Websters Dictionary (01 Mar 1998) |
| film, ap | An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front. (12 Dec 1998) |
| film changer | A device that moves film for radiographic studies that require rapid serial X-ray exposures, such as angiography. Synonym: rapid film changer, serial film changer. (05 Mar 2000) |
| film dosimetry | Use of a device (film badge) for measuring exposure of individuals to radiation. It is usually made of metal, plastic, or paper and loaded with one or more pieces of X-ray film. (12 Dec 1998) |
| film, lateral | An X-ray picture taken from the side. (12 Dec 1998) |
| film, pa | An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP (anteroposterior) film in which the rays pass through the body from front-to-back. (12 Dec 1998) |
| film speed | The relative sensitivity of film emulsion to light or radiation exposure; speed is inversely related to detail resolution. (05 Mar 2000) |
| lateral diffusion | Diffusion in two dimensions, usually referring to movement in the plane of the membrane, such as the motion of fluorescently labelled lipids or proteins measured by the technique of fluorescent recovery after photobleaching (FRAP). (18 Nov 1997) |
| latitude film | Film that does not show large contrast differences with differences in exposure; the slope of the H and D curve is low. Synonym: latitude film. (05 Mar 2000) |
| least diffusion circle | In the configuration of rays emerging from a spherocylindrical lens system, the place where diverging rays of the lens first forming a line image are balanced by converging rays of the second lens. (05 Mar 2000) |