Other forms: projectors
A projector is a device that throws an image onto a screen or wall. Set up the projector, the projector bulb, a data projector.
Brightness is measured in lumens and it is the number that matters, because a dim one is unusable in daylight. Cinema projectors ran film past a shutter and showed each frame twice to stop flicker. The Latin means to throw forward.
1nounprojectorA device that throws an image onto a screen.
“The teacher turned off the lights and switched on the projector.”
projector is a device.
Project plus -or, from Latin proicere, to throw forward — pro plus iacere, to throw.
Latin
projector — person who throws away
English, today
projector
Partly from Latin projector (“person who throws away”); partly directly from project + or.
Etymology from Wiktionary, CC BY-SA