Submitted by György Chityil ... on Fri, 01/19/2018 - 20:21 Hierarchy: NounDescription: {{context|roofing}} Crushed stone, crushed slag or water-worn gravel used for surfacing a built-up roof system.Ngram: aggregateNgram Text: aggregateSource: WiktionaryIssue: 0Wiktionary tag: roofingNgram Count: 1
