fócasach

== Irish == === Etymology === From fócas (“focus”) +‎ -ach (adjectival suffix). === Adjective === fócasach (genitive singular masculine fócasaigh, genitive singular feminine fócasaí, plural fócasacha, not comparable) (medicine) focal ==== Declension ==== ==== Derived terms ==== fad fócasach (“focal length”) pointe fócasach (“focal point”) === Mutation === === Further reading === Ó Dónaill, Niall (1977), “fócasach”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN “focal”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2026