\Pro*jec"tor\, n.
An optical instrument for projecting a picture upon a screen,
as by a magic lantern or by an instrument for projecting (by
reflection instead of transmission of light) a picture of an
opaque object, as photographs, picture post-cards, insects,
etc., in the colors of the object itself. In this latter form
the projection is accomplished by means of a combination of
lenses with a prism and a mirror or reflector. Specific
instruments have been called by different names, such as
{radiopticon}, {mirrorscope}, {balopticon}, etc.

\Pro*ject"or\, n. [Cf. F. projeteur.]
One who projects a scheme or design; hence, one who forms
fanciful or chimerical schemes. --L'Estrange.