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VIRTUAL REALITY (VR) as defined by a Google Search:

vir·tu·al re·al·i·ty

ˈˌvərCH(əw)əl rēˈalədē

noun: virtual reality

the computer-generated simulation of a three-dimensional image or environment that can be interacted with in a seemingly real or physical way by a person using special electronic equipment, such as a helmet with a screen inside or gloves fitted with sensors.