territory in which there is no slavery; esp., any territory in the U.S. where slavery was prohibited before the Civil War
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adjective
opposed to the extension of slavery; specif., designating or of a former (1848-54) political party () that opposed the spread of slavery into the Territories
U.S. territory in which slavery was prohibited before the Civil War.
adjective
Prohibiting slavery: free-soil states.
a. Opposing the extension of slavery before the U.S. Civil War.
b. Free-Soil Of or being a U.S. political party founded in 1848 to oppose the extension of slavery into U.S. territories and the admission of slave states into the Union.