■ noun (in the US) the boundary between Maryland and Pennsylvania, taken as the northern limit of the slave-owning states before the abolition of slavery.
Origin
named after Charles Mason and Jeremiah Dixon , who surveyed it in 1763–7.
■ noun (in the US) the boundary between Maryland and Pennsylvania, taken as the northern limit of the slave-owning states before the abolition of slavery.
Origin
named after Charles Mason and Jeremiah Dixon , who surveyed it in 1763–7.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004