[ uh-rak-nuh-foh-bee-uh ]
/ əˌræk nəˈfoʊ bi ə /


an abnormal or pathological fear of spiders.


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Origin of arachnophobia

1925–30; < Greek aráchnē ‘spider’ + -phobia

OTHER WORDS FROM arachnophobia

a·rach·no·phobe, nouna·rach·no·pho·bic, adjective, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for arachnophobia

British Dictionary definitions for arachnophobia

/ (əˌræknəˈfəʊbɪə) /


an abnormal fear of spiders

Derived forms of arachnophobia

arachnophobic, adjective, noun

Word Origin for arachnophobia

C20: from Greek arakhnē spider + -phobia
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 arachnophobia

[ ə-răk′nə-fōbē-ə, -nō- ]


An abnormal fear of spiders.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.