lens

definition: a transparent optical device used to converge or diverge transmitted light and to form images
example:
speech part: noun
synonyms: lense
definition: electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons
example:
speech part: noun
synonyms: electron lens
definition: biconvex transparent body situated behind the iris in the eye
example:
speech part: noun
synonyms: crystalline lens lens of the eye
definition: (metaphor) a channel through which something can be seen or understood
example: the writer is the lens through which history can be seen
speech part: noun
synonyms:

lens is explained and pronounced

How lens is being used?