- the boundary range between Pennsylvania and Maryland, since run prior to the Revolution (1764-1767) by two English astronomers named Charles Mason and Jeremiah Dixon. In a protracted good sense, the line between the no-cost additionally the servant States.
- the boundary between Maryland and Pennsylvania; symbolic dividing line between North and Southern ahead of the United states Civil War
- identify range.
Hypernym for "mason and dixon's line"
- state boundary
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