Definition of Sonora
1 river 250 miles (400 kilometers) long in northwestern Mexico flowing southwest into the upper Gulf of California
2 state of northwestern Mexico bordering on the U.S. (Arizona and a small section of New Mexico) and the Gulf of California; capital Hermosillo area 71,403 square miles (184,934 square kilometers), population 2,662,480
Sonoranplay \-ən\ adjective or noun
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