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photo

[ foh-toh ]
/ ˈfoʊ toʊ /
SEE SYNONYMS FOR photo

noun, plural pho·tos.

photograph.
Informal. photo finish.

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Origin of photo

First recorded in 1855–60; shortened form of photograph

Definition for photo (2 of 2)

photo-

a combining form meaning “light” (photobiology); also used to represent “photographic” or “photograph” in the formation of compound words: photocopy.
Also especially before a vowel, phot-.

Origin of photo-

<Greek, combining form of phôs (genitive phōtós)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Words related to photo

picture, likeness, image, snapshot, print, portrait, impression, photograph, copy, art, description, figure, account, sketch, cartoon, depiction, report, statue, portrayal, piece

Example sentences from the Web for photo

British Dictionary definitions for photo (1 of 2)

photo
/ (ˈfəʊtəʊ) /

noun plural -tos

short for photograph (def. 1)

British Dictionary definitions for photo (2 of 2)

photo-

combining form

of, relating to, or produced by lightphotosynthesis
indicating a photographic processphotolithography

Word Origin for photo-

from Greek phōs, phōt- light
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

Medical definitions for photo

photo-

pref.

Light; radiant energy:photosynthesis.
Photographic:photofluorography.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for photo

photo-

A prefix that means “light,” as in photoreceptor.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.