Submitted by György Chityil ... on Fri, 01/19/2018 - 16:50 Hierarchy: InitialismDescription: {{British|trade union}} '''A'''ssociation of '''S'''cientific, '''T'''echnical and '''M'''anagerial '''S'''taffs, a trade union.Ngram: ASTMSNgram Text: ASTMSSource: WiktionaryIssue: 0Wiktionary tag: trade unionNgram Count: 1