achtainiam

== Irish == === Etymology === From Ancient Greek ἀκτίς (aktís, “ray”) + -iam. === Noun === achtainiam m (genitive singular achtainiam) actinium ==== Declension ==== ==== Related terms ==== === Mutation === === Further reading === Ó Dónaill, Niall (1977), “achtainiam”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN “actinium”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2026 Foclóir Eolaíochta