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acrophobia

American  
[ak-ruh-foh-bee-uh] / ˌæk rəˈfoʊ bi ə /

noun

Psychiatry.

  1. an irrational or disproportionate fear of heights.

    I knew my acrophobia would keep me off of the competitive diving platforms, but I was surprised when walking the diving board three feet above the pool deck also terrified me.
acrophobia British  
/ ˌækrəˈfəʊbɪə /

noun

  1. abnormal fear or dread of being at a great height

"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
acrophobia Cultural  

  1. An abnormal fear of heights.

Other Word Forms

  • acrophobic adjective

Etymology

Origin of acrophobia

First recorded in 1890–95; acro-, -phobia

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.