projector

A device for projecting a beam of light.

A device that projects an image onto a screen or other surface.

One who devises plans or projects.

In projective geometry: A projecting straight.

A projecting plane.

An eject.

One who forms projects; one who forms a scheme or design; a schemer.

That which projects; specifically, a parabolic mirror, or a lens or combination of lenses, used for projecting a beam of light.

A camera for throwing an image on a screen by means of electric, magnesium, oxyhydrogen, or other suitable light.

The square of the area of a plane triangle divided by the continued product of the sides.