osoon

== Estonian == === Etymology === Borrowed from English ozone. === Pronunciation === IPA(key): /oˈsoːn/, [oˈsoːn] Hyphenation: o‧soon Rhymes: -oːn === Noun === osoon (genitive osooni, partitive osooni) ozone ==== Inflection ==== ==== Synonyms ==== trihapnik === References === “osoon”, in [ÕS] Eesti õigekeelsussõnaraamat ÕS 2018 [Estonian Spelling Dictionary] (in Estonian) (online version), Tallinn: Eesti Keele Sihtasutus (Estonian Language Foundation), 2018, →ISBN