Submitted by György Chityil ... on Fri, 01/19/2018 - 16:59 Hierarchy: NounDescription: {{astronomy}} a type of active galaxy with an active galactic nucleus (AGN), named after its prototype, BL LacertaeNgram: BL Lac objectNgram Text: BL Lac objectSource: WiktionaryIssue: 0Wiktionary tag: astronomyNgram Count: 3
