English Explanatory Dictionary

Mason-Dixon Line

English dictionary entry

Meanings

name
  1. The boundary line between Pennsylvania and Maryland, as run (1764–1767) by Charles Mason and Jeremiah Dixon, that, before abolition, defined part of the northern boundary of states in which slavery was permitted.
  2. The boundary between the free and slave states at the time of the American Civil War, or between states with different segregationist policies in the Jim Crow era.
name
  1. Alternative letter-case form of Mason-Dixon Line.

Word forms

Mason-Dixon Line Mason–Dixon Line Mason and Dixon line Mason's and Dixon's line

Etymology

Named after English astronomers Charles Mason (1728–1786) and Jeremiah Dixon (1733–1779).

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