Submitted by György Chityil ... on Fri, 01/19/2018 - 16:55 Hierarchy: Proper NounDescription: {{astronomy}} The name of one of Pluto's moons. (Named 21 June 2006).Ngram: HydraNgram Text: HydraSource: WiktionaryIssue: 0Wiktionary tag: astronomyNgram Count: 1Wikokit WikiText ID: 80930
