ohnisko

== Czech == === Etymology === Inherited from Proto-Slavic *ognisko. By surface analysis, oheň (“fire”) +‎ -isko. === Pronunciation === IPA(key): [ˈoɦɲɪsko] Rhymes: -ɪsko Hyphenation: ohni‧s‧ko === Noun === ohnisko n (relational adjective ohniskový) (optics) focus, focal point (point at which reflected or refracted rays of light converge) Synonym: fokus (geometry) focus (point of a conic at which rays reflected from a curve or surface converge) Synonym: fokus ==== Declension ==== ==== Related terms ==== === Further reading === “ohnisko”, in Příruční slovník jazyka českého (in Czech), 1935–1957 “ohnisko”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989 “ohnisko”, in Internetová jazyková příručka (in Czech), 2008–2026