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We found 19 dictionaries with English definitions that include the word date line: Click on the first link on a line below to go directly to a page where "date line" is defined. General (16 matching dictionaries) date line: American Heritage Dictionary of the English Language [home, info] date line: Collins English Dictionary [home, info] date line: Vocabulary.com [home, info] the date line: Macmillan Dictionary [home, info] Date Line: Wordnik [home, info] date line: The Wordsmyth English Dictionary-Thesaurus [home, info] date line: Dictionary.com [home, info] Date Line: Wikipedia, the Free Encyclopedia [home, info] date line: Rhymezone [home, info] date line: Free Dictionary [home, info] date line: Mnemonic Dictionary [home, info] date line: WordNet 1.7 Vocabulary Helper [home, info] date line: LookWAYup Translating Dictionary/Thesaurus [home, info] date line: Dictionary/thesaurus [home, info] Art (1 matching dictionary) date line: ODLIS: Online Dictionary of Library and Information Science [home, info] Computing (1 matching dictionary) date line: Encyclopedia [home, info] Science (1 matching dictionary) Date Line: From Stargazers to Starships Glossary [home, info]

Quick definitions from WordNet (date line) ▸ noun:  an imaginary line on the surface of the earth following (approximately) the 180th meridian