Submitted by György Chityil ... on Fri, 01/19/2018 - 18:37 Hierarchy: NounDescription: {{geology}} A rock composed of compacted volcanic ash varying in size from fine sand to coarse gravel.Ngram: tuffNgram Text: tuffSource: WiktionaryIssue: 0Wiktionary tag: geologyNgram Count: 1Wikokit WikiText ID: 1353746
