Submitted by György Chityil ... on Fri, 01/19/2018 - 22:00 Hierarchy: NounDescription: {{engineering}} The circle in which a measurement is taken. Generally used when measuring the tooth of a gear.Ngram: datum circleNgram Text: datum circleSource: WiktionaryIssue: 0Wiktionary tag: engineeringNgram Count: 2
