Dictionary.com

photophobia

[ foh-tuh-foh-bee-uh ]
/ ˌfoʊ təˈfoʊ bi ə /
Save This Word!

noun

Pathology. a painful sensitivity to or extreme intolerance of bright light, as in iritis.
an irrational or disproportionate fear of light.

QUIZZES

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of photophobia

First recorded in 1790–1800; photo- + -phobia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for photophobia

photophobia
/ (ˌfəʊtəʊˈfəʊbɪə) /

noun

pathol abnormal sensitivity of the eyes to light, esp as the result of inflammation
psychiatry abnormal fear of or aversion to sunlight or well-lit places
photophobic, adjective
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 photophobia

photophobia
[ fō′tə-fōbē-ə ]

n.

An abnormal sensitivity to or intolerance of light, especially by the eyes, as may be caused by eye inflammation, lack of pigmentation in the iris, or various diseases.
An abnormal or irrational fear of light.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
What's This Word?