screen

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screen

 [skrēn]
1. a framework or agent used as a shield or protector; called also protectant and protective.
2. to separate well individuals in a population from those who have an undiagnosed disease, defect, or other pathologic condition or who are at high risk by means of tests, examinations, or other procedures. See also screening.
Bjerrum screen tangent screen.
fluoroscopic screen a phosphorescent screen that shows the movement and relationship of organs and structures in fluoroscopy.
intensifying screen a fluorescent screen used in conjunction with x-ray film to enhance the effect of the radiation and reduce dosage to the patient. The screen must be matched to the emissivity range; the emissivity of phosphorus is similar to that of the human eye, so that phosphors absorb x-ray energy and convert it to visible light.
tangent screen a large square of black cloth with a central mark for fixation; used with a campimeter in mapping the field of vision.

screen

(skrēn),
1. A sheet of any substance used to shield an object from any influence, such as heat, light, or x-rays.
See also: screen memory.
2. A sheet on which an image is projected.
See also: screen memory.
3. Formerly, to make a fluoroscopic examination.
See also: screen memory.
4. In psychoanalysis, concealment, as one image or memory concealing another.
See also: screen memory.
5. To examine, evaluate; to process a group to select or separate certain individuals from it.
6. A thin layer of crystals that converts x-rays to light photons to expose film; used in a cassette to produce radiographic images on film.
[Fr. écran]

screen

(skrēn)
1. a structure resembling a curtain or partition, used as a protection or shield, e.g., against excessive radiation exposure.
2. a large flat surface upon which light rays are projected.
3. protective (2).
4. to examine by fluoroscopy (Great Britain).
5. to separate well individuals in a population from those with an undiagnosed pathologic condition by means of tests, examinations, or other procedures.

skin screen  a substance applied to the skin to protect it from the sun's rays or other noxious agents.
solar screen , sun screen sunscreen.

screen

(skrēn)
n.
1. A movable device that serves to protect, conceal, or divide.
2. A surface or device on which an image is displayed for viewing.
3. A screen memory.
v.
1. To process a group of people in order to select or separate certain individuals from it.
2. To test or examine for the presence of disease or infection.
3. To subject to genetic screening.

screen

Molecular biology
verb To detect a phenotype’s presence or absence by testing for growth under different conditions (e.g., plus and minus an auxotrophic supplement or permissive and non-permissive conditions), usually done by replica plating or patching colonies onto each type of plate.
 
Public health
noun
(1) Any systematic activity—e.g., measuring BP, glucose or cholesterol; pap smear; or other activity—which attempts to identify a particular disease in persons in a particular population.
(2) A popular term for a solar protection barrier.

screen

Public health
1. Any systematic activity–eg, measuring BP, glucose or cholesterol, pap smear, or other activity, which attempts to identify a particular disease in persons in a particular population. See Drug screen, General health screen, Laxative screen, Memory Impairment screen, Metabolic screen, Neonatal screen.
2. A solar protection barrier. See Sunscreen.

screen

(skrēn)
1. A sheet of any substance used to shield an object from any influence (e.g., heat, light, x-rays).
2. A sheet on which an image is projected.
3. psychoanalysis Concealment, as one image or memory concealing another.
See also: screen memory
4. To examine, evaluate; to process a group to select or separate certain individuals from it.
5. A thin layer of crystals that converts x-rays to light photons to expose film; used in a cassette to produce radiographic images on film.
6. To examine for the presence or absence of specified characteristics to determine whether further examination is needed.
[Fr. écran]

screen,

n initial examination to determine the existence of a disease or disorder.

screen

(skrēn)
1. A sheet of any substance used to shield an object from any influence, such as heat, light, or x-rays.
2. A sheet on which an image is projected.
3. To examine, evaluate; to process a group to select or separate some individuals from it.
Synonym(s): screening (1).
[Fr. écran]

screen

1. a framework or agent used as a shield or protector.
2. to examine.

fast screen
permits big reduction in exposure to x-ray beam.
screen film
prepared to be used with intensifying screens. The standard film and marketed as being of standard, fast or ultrafast speeds.
rare-earth screen
see rare-earth intensifying screen.
References in periodicals archive ?
The competition will culminate on November 4, 2011, the official date of the Second Annual Great American Screen Off, which is believed to be the largest single day dedicated to screening for risk and raising awareness of COPD.
The Great American Screen Off encourages people to take the COPD Risk Screener to determine their risk for COPD.
It seems Samsung is bolstering the S3's eye tracking ability, which means that the gadget can sense whether a user is actively looking at the phone before turning the screen off automatically.
If he were to watch a thief sneak in, take a plasma TV screen off a wall, and exit, he'd have to report it.
4, 2010 /PRNewswire/ -- Events across the country today mark the first annual DRIVE4COPD Great American Screen Off to raise awareness of chronic obstructive pulmonary disease (COPD) and screen people for their risk of the disease.
The film screens in 3D and IMAX 3D in selected cinemas and the technology is employed to impressive effect, like woodchips that fly at the screen off Jake''s heels when his avatar runs for the first time.
Surely, if it's a matter of segregation, it wouldn't be too difficult to screen off the lower-tier turnstiles for the Panasonic Stand so that the visitors can go in there.
For instant results screen off unsightly areas with fencing or trellis draped in flowering climbers.
Angry Paul Harland pushed a computer screen off a shelf when DSS staff could not sort out his benefit claim, a court heard.
Her biggest commission has been a six-foot-high room divider to screen off a kitchen from a dining area, which was made in such a way that the two panels fold away against a wall when not needed.