gwrthfaterol

== Welsh == === Etymology === gwrthfater (“antimatter”) +‎ -ol. === Pronunciation === (North Wales) IPA(key): /ɡʊrθvaˈtɛrɔl/ (South Wales) IPA(key): /ɡʊrθvaˈteːrɔl/, /ɡʊrθvaˈtɛrɔl/ === Adjective === gwrthfaterol (feminine singular gwrthfaterol, plural gwrthfaterol, not comparable) relating to antimatter, antimaterial === Mutation === === Further reading === Griffiths, Bruce; Glyn Jones, Dafydd (1995), “antimatter”, in Geiriadur yr Academi: The Welsh Academy English–Welsh Dictionary‎[1], Cardiff: University of Wales Press, →ISBN