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arachnophobia

[uh-rak-nuh-foh-bee-uh]
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noun
  1. an abnormal or pathological fear of spiders.
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Origin of arachnophobia

1925–30; < Greek aráchnē ‘spider’ + -phobia
Related formsa·rach·no·phobe, nouna·rach·no·pho·bic, adjective, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for arachnophobic

arachnophobia

noun
  1. an abnormal fear of spiders
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Derived Formsarachnophobic, adjective, noun

Word Origin

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

Word Origin and History for arachnophobic

arachnophobia

n.

1925, from comb. form of arachnid + -phobia "fear."

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Online Etymology Dictionary, © 2010 Douglas Harper

arachnophobic in Medicine

arachnophobia

(ə-răk′nə-fōbē-ə, -nō-)
n.
  1. An abnormal fear of spiders.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.