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grey line. In DICTIOUS you will not only get to know all the dictionary meanings for the word
grey line, but we will also tell you about its etymology, its characteristics and you will know how to say
grey line in singular and plural. Everything you need to know about the word
grey line you have here. The definition of the word
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English
Noun
grey line (plural grey lines)
- Synonym of terminator (“the line between the day side and the night side of a moon, planet or other celestial body”).