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1. The technique of photographing or filming an actor or object against a green monochrome backdrop, and replacing the backdrop with material from a different image using a color filter.
2. The green monochrome backdrop used in this technique.

green′screen′ v.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
He handles the action setpieces well but is let down by his special effects team as much of the CGI grates with characters facing off in front of obvious greenscreen technology.
Loughborough Students' Union (LSU) will also be running a variety of activities and workshops on the day, including face painting and Greenscreen Fun!
We were able to use a greenscreen to to help us get the feeling of being back in an old school English stadium."
For the role of Susan Mullucks in series six, she wore a special costume that allowed greenscreen technology to alter her appearance.
Selection of chemical screening tools Expert Tool Catalogue Framework Analysis CleanGredients X GreenScreen X GreenWERCS X Pharos Chemicals and X Material Library SciVera Lens X US EPA Safer Choice X Chemicals List Higg Index X USEPA Design for Environment X Living Building Challenge X Red List Walmart Sustainable Chemistry X Implementation FIGURE 1.
The reports adhere to requirements of the Globally Harmonized System for the Classification and Labeling of Chemicals, and are equivalent in LEED v4 to Health Product Declaration, Cradle to Cradle, Manufacturer Inventory Reports using GreenScreen benchmark evaluation, and Declare.
Free to all high school-age New Look participants, the experiential learning facility boasts a Game Loft, where participants can build video games and apps; a greenscreen room for young videographers and photographers; a test kitchen for aspiring chefs; and a large space dubbed the Hangar, which hosts SAT prep, tutoring sessions, and meetings with small-business loan representatives.
GreenScreen for Safer Chemicals method, developed by US-based non-profit Clean Production Action carry out assessments on substances, that are assigned a benchmark between 1-4, with 1 being the most hazardous.
Other examples of online databases include Pharos, GreenScreen, and ChemHAT, which provide information about chemical toxicity aimed at allowing private-sector firms and consumers to make safer decisions about substances and processes they use.