greenscreen

noun
UK /ˈɡriːn.skriːn/
US /ˈɡriːn.skriːn/

A bright green cloth or wall that lets you put a different picture behind someone on TV or video.

The weather reporter stands in front of a greenscreen so the map can appear behind her.


OTHER MEANINGS

2. The technique of replacing a green background with another image in film and video.

The movie used greenscreen to make the actors look like they were on a spaceship.

3. A green-colored computer display or terminal screen.

Old computers often had a greenscreen that showed only green text.

4. A screen made of green material used in photography to add backgrounds later.

The photographer set up a greenscreen for the class photo.