Definition of "green screen" []

• Chroma key, a technique for replacing the studio background of video. Also called blue screen depending on the color of the background. (noun)
• The display of an IBM 3270 or similar monochrome monitor. (noun)

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• "The walls leaned together abruptly and the cãnon ended in a chaos of rocks, moss-covered and hidden by a green screen of vines and creepers and boughs of trees."
• "Also, and what they did not see, he saw from the galley the squat figure of a man steal for'ard, drop to the sand, and dive into the green screen of bush."
• "MARTHA GRIMES of slots for some disks, and on the green screen pulsed a tiny white square."