noun Movies, Optics.
a compound lens or system of lenses that compresses the camera image in the horizontal direction during filming, so that a wide-screen image can fit on the width of conventional 35-mm film.
a similar system used in projection that horizontally expands the compressed image back to its original wide-screen aspect ratio.
Retro Words You’ll Probably Never Use AgainMost of these retronyms -- obsolete words and phrases -- are outdated technologies.
Origin of anamorphic lens
First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for anamorphic lens
a component in the optical system of a film projector for converting standard 35mm film images into wide-screen format
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012