O ‧ kla ‧ ho ‧ ma /ˌəʊkləˈhəʊmə◂/ BrE AmE written abbreviation , OK
a state in the Great Plains in western central US, whose products include oil and grain. Oklahoma has a large Native American population. Its farmlands became part of the Dust Bowl in the 1930s, when very dry conditions forced many people to leave their farms and look for work in other places, especially California.