Part of the process of Environmental impact assessment.

Screening (medicine)

Hampering an opponent's attempts at reconnaissance

Screening, in general, is the investigation of a great number of something (for instance, people) looking for those with a particular problem or feature. One example is at an airport, where many bags get x-rayed to try to detect any which may contain weapons or explosives. People are also screened going through a metal detector. Even though the procedure aims at a large number of screens, it is always equivalent to sampling in statistics, because the complete population is almost always inaccessible for screening. Screening has other, more specific meanings:

In physics, electric field screening refers to the dampening of an electric field by mobile charges

Screening (economics)

In color printing, screening refers to a process that represents lighter shades as tiny dots, rather than solid areas, of ink

In atomic physics and chemistry, screening effect refers to the observation that electronic properties of atoms are better described if atoms had a lower effective nuclear charge than that would be otherwise expected from the number of protons present.

Screening for pharmacological activity during drug discovery

A type of tactic (sometimes legal, sometimes not) in sport games such as basketball or volleyball

A screening can refer to the display of a film in a movie theatre or screening room, for some special purpose such as testing or critical review.