Define Lehigh. Lehigh synonyms, Lehigh pronunciation, Lehigh translation, English dictionary definition of Lehigh. n. a river in E Pennsylvania, flowing SW and SE into the Delaware River. 103 mi. long. Random House Kernerman Webster's College Dictionary,
Define Lehigh River. Lehigh River synonyms, Lehigh River pronunciation, Lehigh River translation, English dictionary definition of Lehigh River. A river, about 150 km long, of eastern Pennsylvania flowing generally southeast to the Delaware River. Americ