Submitted by György Chityil ... on Fri, 01/19/2018 - 20:57 Hierarchy: NounDescription: {{context|construction}} A rigid closed-cell insulation board made from crushed glass and hydrogen sulfide gas.Ngram: cellular glass insulationNgram Text: cellular glass insulationSource: WiktionaryIssue: 0Wiktionary tag: constructionNgram Count: 3
