[ foh-tuh-foh-bee-uh ]
/ ˌfoʊ təˈfoʊ bi ə /

noun Pathology.

an abnormal sensitivity to or intolerance of light, as in iritis.
an abnormal fear of light.

Origin of photophobia

First recorded in 1790–1800; photo- + -phobia Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for photophobia

British Dictionary definitions for photophobia


/ (ˌfəʊtəʊˈfəʊbɪə) /


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

Derived Forms

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

Medicine definitions for photophobia


[ fō′tə-fōbē-ə ]


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.