noun / verb
screen
A barrier that filters or blocks passage.
The window screen lets fresh air in but keeps insects out.
Etymology
The older word names a protective barrier. Modern uses preserve the separation function, whether the screen blocks passage entirely or filters what can pass.
More examples
- A wooden screen separates the bed from the rest of the room.
- Hedges screen the patio from the street.
- The clinic screens donated blood for signs of infection.
Forms
screen · screens · screened · screening
screening noun — The process of checking for suitability.