a transparent optical device used to converge or diverge transmitted light and to form images पर्याय: lense, lens system,
electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons पर्याय: electron lens,
biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina पर्याय: crystalline lens, lens of the eye,
(metaphor) a channel through which something can be seen or understood; "the writer is the lens through which history can be seen"