back-projection
ˈback-projec•tionBrE 
NAmE 
noun 1 [uncountable] the process of shining an image onto the back of a screen 2 [countable] an image that has been shone onto the back of a screen
ˈback-projec•tionBrE NAmE noun 1 [uncountable] the process of shining an image onto the back of a screen 2 [countable] an image that has been shone onto the back of a screen
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