gjóska

== Icelandic == === Etymology === From gjósa (“to erupt”). === Pronunciation === IPA(key): /ˈcouska/ Rhymes: -ouska === Noun === gjóska f (genitive singular gjósku, no plural) (geology) tephra ==== Declension ==== === Further reading === “gjóska” in the Dictionary of Modern Icelandic (in Icelandic) and ISLEX (in the Nordic languages)