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Overhead projector
/ˌəʊvəhˈɛd pɹədʒˈɛktə/
/ˌoʊvɚhˈɛd pɹədʒˈɛktɚ/
Overhead projector
01
a device that projects images or text from a transparency onto a screen or wall
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a device that projects images or text from a transparency onto a screen or wall