Origin of zoom

First recorded in 1885–90; imitative
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for zoom in (1 of 2)

zoom in

verb

(intr, adverb) photog films television to increase rapidly the magnification of the image of a distant object by means of a zoom lens
to examine the smallest details of a subject

British Dictionary definitions for zoom in (2 of 2)

zoom
/ (zuːm) /

verb

noun

the sound or act of zooming

Word Origin for zoom

C20: of imitative origin
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