Submitted by György Chityil ... on Fri, 01/19/2018 - 16:36 Hierarchy: NounDescription: {{engineering}} The end cap of a cylindrically-shaped pressure vessel.Ngram: headNgram Text: headSource: WiktionaryIssue: 0Wiktionary tag: engineeringNgram Count: 1Wikokit WikiText ID: 722049