what is inversion
inversionnoun [ C or U ] uk â /ÉªnËvÉË.ÊÉn/ us â /ÉªnËvÉË.ÊÉn/. âº a situation in which something is changed so that it is the opposite of what it was before, or in which something is turned upside down: Her account of the case was an inversion of the facts (= it said the opposite of what really happened). âº specialized medical a situation in which an organ, or part of an organ, is turned inside out. Thesaurus: synonyms and related words. Opposites. antithesis.