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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 ?
We first asked, of children born in 1995 and screened for lead exposure in 1996-1997, what percentage was living in housing built before 1950 when screened?
Mapping this information revealed that most of the screened children residing in housing built before 1950 lived in the northwestern section of the county.
Despite widespread support for regular screening, however, the majority of Americans over the age of 50 have never been screened by any method, allowing the high mortality associated with this disease to persist.
Patient preference for stool-based DNA testing is also evident in post-market data for PreGen-Plus, the commercially available version of the stool-based DNA test, which indicates that more than half of the people surveyed who have used PreGen-Plus had never been screened before.
PreGen-Plus has been used by thousands of patients to date, and post-market data show that more than half of those patients had never been screened for colorectal cancer before.
While physicians strongly recommend colonoscopy, it is important to offer options to ensure that every American aged 50 and older gets screened regardless of access or other barriers.
Using a Uniform Rank of 1-99 (99 being the best growth rates), he screened for stocks ranked 80 or better.