[ fawr-mi-key-shuh n ]
/ ˌfɔr mɪˈkeɪ ʃən /


a tactile hallucination involving the belief that something is crawling on the body or under the skin.

Origin of formication

1700–10; < Latin (Pliny) formīcātiōn-, stem of formīcātiō a sensation that ants are crawling on one's skin, equivalent to formicā(re) to have such a sensation (verbal derivative of formīca ant) + -tiōn- -tion

Can be confused

formication fornication Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for formication

British Dictionary definitions for formication


/ (ˌfɔːmɪˈkeɪʃən) /


a sensation of insects crawling on the skin; symptom of a nerve disorder

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 formication


[ fôr′mĭ-kāshən ]


An abnormal sensation as of insects running over or into the skin, associated with cocaine intoxication or disease of the spinal cord and peripheral nerves.

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