achtanach

== Irish == === Etymology === From achtan(a)(i)- (“actin(o)-”) + -ach. === Adjective === achtanach (genitive singular masculine achtanaigh, genitive singular feminine achtanaí, plural achtanacha, not comparable) actinic ==== Declension ==== ==== Related terms ==== === Mutation === === Further reading === Ó Dónaill, Niall (1977), “achtanach”, in Foclóir Gaeilge–Béarla [Irish–English Dictionary], Dublin: An Gúm, →ISBN “actinic”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2026 de Bhaldraithe, Tomás (1959), “achtanach”, in English-Irish Dictionary, An Gúm