One of the mysteries of the English language finally explained.
A device that projects an enlarged image of an acetate or other transparency placed on it on to a wall or screen by means of an overhead mirror.
- ‘He paged through about a dozen transparencies on the overhead projector.’
- ‘The presenter will need to stand next to the overhead projector or plan to have an assistant to coordinate the transparencies with the talk.’
- ‘The studio's back wall is lit by an overhead projector placed on a table slightly to the right of center, against which a few ornate frames lean.’
- ‘Some of the best ideas were then enlarged, transferred onto the wall with an overhead projector and painted in acrylic paint.’
- ‘You could use the instrument also to project written or printed documents, by laying them flat on the surface, and having them optically projected just like in an overhead projector.’
- ‘The man turns away and changes transparencies on the overhead projector and begins his lesson.’
- ‘Project the student's silhouette with the use of an overhead projector or any light source.’
- ‘She creates miniature 3D images on overhead projectors and shelves, which are seen as 2D images.’
- ‘But the slick presentation, complete with images from an overhead projector, did little to calm the frustration felt by many of the audience.’
- ‘For many years, overhead projectors lit up transparencies, and slide projectors showed high-resolution 35 mm slides.’
- ‘Audio-visual aids such as overhead projectors and transparencies, flip charts, audio and video players, etc. can be tremendous assets when used effectively, but great liabilities when not.’
- ‘I made transparencies of their original sketches and we used overhead projectors to trace their designs on the walls.’
- ‘During one observation, Beth had her students copy a textbook problem she projected on the overhead projector rather than having them copy the problem from their individual textbooks.’
- ‘Some churches employ microphones, tape recording, CCTV, or overhead projectors, while others avoid such devices.’
- ‘He stands beside a screen, a computer and an overhead projector, pointer in hand.’
- ‘I can tell the youth group likes this song, because when Jason slips the transparency onto the overhead projector, we hear a chorus of ‘Yesss!’’
- ‘It's sort of like one of those screens for overhead projectors.’
- ‘First, the student uses an overhead projector to project his or her image onto a large piece of stiff paper.’
- ‘The room was equipped with a microphone system, slide projector, overhead projector, and a computer system for the use of Power Point presentations and Internet searches.’
- ‘Transparencies are becoming less important with the demise of the overhead projector, but you may need special papers for reports and so on.’
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