Word Study
interstate
CIDE DICTIONARY
interstate, a.
Pertaining to the mutual relations of States; existing between, or including, different States; as, interstate commerce. Story.
interstate, n.
An interstate highway, part of the United States Interstate Highway system. [PJC]
OXFORD DICTIONARY
interstate, adj. & n. US
--adj. existing or carried on between States, esp. of the US.
--n. a motorway, esp. crossing a State boundary.
--adj. existing or carried on between States, esp. of the US.
--n. a motorway, esp. crossing a State boundary.
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