FORMICATION Meaning of FORMICATION in English [ ˌfɔ:mɪ'keɪʃ(ə)n ]■ noun a sensation like insects crawling over the skin.OriginC18: from L. formicatio(n-) , from formicare 'crawl like an ant'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004