arsanúil

== Irish == === Etymology === From arsanaic (“arsenic”) +‎ -úil (“adjectival suffix”). === Adjective === arsanúil (genitive singular masculine arsanúil, genitive singular feminine arsanúla, plural arsanúla, not comparable) (chemistry) arsenious ==== Declension ==== === Mutation === === Further reading === Ó Dónaill, Niall (1977), “arsanúil”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN de Bhaldraithe, Tomás (1959), “arsanúil”, in English-Irish Dictionary, An Gúm