Submitted by György Chityil ... on Fri, 01/19/2018 - 20:25 Hierarchy: NounDescription: A comprehensive treaty on astronomy, geography, and mathematics compiled by Ptolemy circa 150 {{C.E.}}.Ngram: almagestNgram Text: almagestSource: WiktionaryIssue: 0Wiktionary tag: C.E.Ngram Count: 1