| LBHB | low barrier hydrogen bond |
|---|---|
| RFB | replication fork barrier |
| 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) |
| 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) |