zoom lens
noun
(in a camera or motion-picture projector) a lens assembly whose focal length can be continuously adjusted to provide various degrees of magnification without any loss of focus, thus combining the features of wide-angle, normal, and telephoto lenses.
Origin of zoom lens
First recorded in 1935–40
Words nearby zoom lens
zoologist,
zoology,
zoom,
zoom in,
zoom in on,
zoom lens,
zoom out,
zoom shot,
zoomastigophorea,
zoometry,
zoomorphic
British Dictionary definitions for zoom lens
zoom lens
noun
a lens system that allows the focal length of a camera lens to be varied continuously without altering the sharpness of the image
See also telephoto lens