projector

noun

pro·​jec·​tor prə-ˈjek-tər 

1

: one that plans a project

specifically : promoter

2

: one that projects: such as

a

: a device for projecting a beam of light

b

: an optical instrument for projecting an image upon a surface

c

: a machine for projecting movies on a screen

3

: an imagined line from an object to a surface along which projection takes place

Examples of projector in a Sentence

Recent Examples on the Web

The face unlock feature on smartphones today traditionally requires three technologies: a laser dot projector, an infrared illuminator, and a standard 2D selfie camera. —Jennifer Kite-Powell, Forbes, 20 Feb. 2025

Check out our other guides to the best telescopes, binoculars, cameras, star projectors, drones, lego and much more. —Chris McMullen, Space.com, 18 Feb. 2025

The movie Barbie plays on a giant projector screen while Dua Lipa’s dance-inducing theme song pumps through loudspeakers. —Tara Massouleh McCay, Southern Living, 7 Feb. 2025

This laser projector had a WUXGA (1,920 x 1,200) resolution and was priced at a whopping US$14,000. —New Atlas, 3 Feb. 2025

Word History

First Known Use

1596, in the meaning defined at sense 1

Phrases Containing projector

• opaque projector
• overhead projector

Kids Definition

projector

noun

pro·​jec·​tor prə-ˈjek-tər 

: a machine for projecting an image or pictures upon a surface

a motion-picture projector

a slide projector