释义 |
pro·jec·tor \prəˈjektə(r), prōˈ-\ noun (-s) Etymology: project (II) + -or 1. a. : one that plans a project b. : one that promotes a chimerical project : schemer 2. : one that projects: as a. : a device for projecting a beam of light < a searchlight projector > b. : an optical instrument for projecting an image upon a surface (as a screen) by means of the transmission of light through a transparent slide or film or the reflection of light from an opaque object (as a photograph or postcard) c. : a machine for projecting and showing motion pictures on a screen — compare sound projector d. : a smooth bore weapon usually used for launching grenades or pyrotechnic signals 3. : a projection line (as from an object to a plane of projection) — used especially in mechanical drawing |