SCREENING • DICCIONARIO INGLES.COM • Definition of Screening

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/skrˈinɪŋ/ Listen

noun

Screening n. The process of examining or testing objects methodically to find those having desirable properties. See screen 3. Note: In the pharmaceutical industry, pharmaceutical screening involves testing a large number of samples of substances to find those having desirable pharmacological activity; those samples which have the property sought are called active or positive in the screen. The substances tested may be pure compounds with known structure, mixtures of pure compounds, or complex mixtures obtained by extraction from living organisms. There are often additional sets of test performed on active samples, called counterscreening to eliminate those samples that may also possess undesirable properties. In the case of screening of mixtures from living organisms, a type of counterscreening called dereplication is usually performed, to determine if the active sample contains a known compound which has previously been studied.

verb

Screen v. t. (past & past part. screened; pres. part. screening)

To provide with a shelter or means of concealment; to separate or cut off from inconvenience, injury, or danger; to shelter; to protect; to protect by hiding; to conceal; as, fruits screened from cold winds by a forest or hill. "They were encouraged and screened by some who were in high commands."

To pass, as coal, gravel, ashes, etc., through a screen in order to separate the coarse from the fine, or the worthless from the valuable; to sift.

To examine a group of objects methodically, to separate them into groups or to select one or more for some purpose. As:

(a)

To inspect the qualifications of candidates for a job, to select one or more to be hired.

(b)

(Biochem., Med.) To test a large number of samples, in order to find those having specific desirable properties; as, to screen plant extracts for anticancer agents.

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Etymology of 'Screening'

Collaborative International Dictionary of English 0.48

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"Screening" Quotes from Famous Books

... he was without his heavy pack. Whatever it was they had brought evidently had been left behind in the cave. One by one they emerged until their number was complete. The last of the little band, a lad apparently no more than sixteen years old, replaced the screening bushes very carefully across the mouth of their hiding place. Then they turned, and retraced their steps, still speaking that strange melodious tongue of theirs, until they had reached the shore and departed the way they had come. ...

— The Outdoor Girls on Pine Island - Or, A Cave and What It Contained • Laura Lee Hope

... action when they went out and sat down on the bench by the kitchen door. Kellogg would be screening Mike Hennen and the constabulary post for verification, and there would be a lot of gathering up and packing to do. Finally, Kurt Borch emerged with a contragravity lifter piled with boxes and luggage, and Jimenez walking beside to steady the load. Jimenez climbed up onto the airboat and Borch ...

— Little Fuzzy • Henry Beam Piper

... its summer dress effectively screening the house beyond from public view, lay between the garden and the road. Above the hedge showed an occasional shrub; at the corner nearest to the car a chestnut flourished. The wooden gate, once white, which they had passed, ...

— Four Max Carrados Detective Stories • Ernest Bramah

... Her frock was of some clinging gray material that made her look more fairy-like than ever. A drooping veil of gray gauze fell like a mist before her face, screening from him the ...

— The Riddle of the Frozen Flame • Mary E. Hanshew

... distinctions are lost in a universal human kinship. On the surface we appear like flowers neatly arranged in a bed, each kind in its separate and carefully labeled corner. Then Schnitzler begins to scrape off the screening earth, and underneath we find the roots of all those flowers intertwined and matted, so that it is impossible to tell which belong to the Count and which to Wasner, the coachman, which to Miss Lolo, the ballet-dancer, ...

— The Lonely Way--Intermezzo--Countess Mizzie - Three Plays • Arthur Schnitzler

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