Submitted by György Chityil ... on Fri, 01/19/2018 - 23:17 Hierarchy: PrefixDescription: {{obsolete}} In the metric systems of units, multiplying the unit to which it is attached by 100,000. Symbol: hkNgram: hectokilo-Ngram Text: hectokilo-Source: WiktionaryIssue: 0Ngram Count: 1