| precorneal film | A protective film, 7 to 9 nm thick, consisting of external oily, intermediate watery, and deep mucoprotein layers. Synonym: tear film. (05 Mar 2000) |
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| X-ray film | A film base coated with an emulsion designed for use with X-rays. (12 Dec 1998) |
| scout film | A radiograph exposed before contrast medium is given, such as the preliminary film for an angiogram, urogram, or barium contrast gastrointestinal examination. Synonym: scout radiograph. (05 Mar 2000) |
| screen-film contact | The closeness and uniformity with which the X-ray film in a cassette lies against the screen. Image resolution is dependent on this closeness and uniformity of contact. (05 Mar 2000) |
| horizontal beam film | A radiograph made with the central axis of the X-ray beam parallel to the floor, able to show an air-fluid level. (05 Mar 2000) |
| serial 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) |
| spot film | A radiograph made during the course of an examination under fluoroscopic control, with a device attached to the fluoroscope. (05 Mar 2000) |
| spot-film radiography | An X-ray of a localised region, usually under study by fluoroscopy. (05 Mar 2000) |
| decubitus film | A radiograph exposed with the subject in the decubitus position; named for the side that is dependent. Synonym: right or left lateral decubitus film. (05 Mar 2000) |
| tear film | A protective film, 7 to 9 nm thick, consisting of external oily, intermediate watery, and deep mucoprotein layers. Synonym: tear film. (05 Mar 2000) |
| thin film | <radiobiology> Plasmas are often used to deposit thin-film coatings on various materials. (09 Oct 1997) |
| 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) |
| 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) |