verb (used with object), o·ver·ex·posed, o·ver·ex·pos·ing.

to expose too much, as to the sun, cold, or light rays (often used reflexively): Be careful of overexposing yourself to the sun.
Photography. to expose (a film or the like) to too much light.

Origin of overexpose

First recorded in 1865–70; over- + expose
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for over-expose

Historical Examples of over-expose

  • You should over-expose rather than under-expose, allowance being made when the acid is used.


    Henry R. Blaney

British Dictionary definitions for over-expose


verb (tr)

to expose too much or for too long
photog to expose (a film, plate, or paper) for too long a period or with too bright a light
Derived Formsoverexposure, noun
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

Word Origin and History for over-expose

1869, in photography, from over- + expose (v.). Figurative sense, in reference to celebrity, first attested 1969 (implied in overexposure). Related: Over-exposed; over-exposing.

Online Etymology Dictionary, © 2010 Douglas Harper