achtanaiméadracht

== Irish == === Etymology === From achtana- (“actino-”) +‎ -méadracht (“-metry”). === Noun === achtanaiméadracht f (genitive singular achtanaiméadrachta) actinometry ==== Declension ==== ==== Related terms ==== achtanaiméadar m (“actinometer”) === Mutation === === References === tearma.ie - Dictionary of Irish Terms - Foclóir Téarmaíochta