Irish county on the S. of the Shannon estuary, between Tipperary and Kerry, watered by the Mulcai, Maigue, and Deel; hilly in the S., is mostly fertile, and under corn and green crops; cattle are reared and dairy products exported; some woollens and paper manufactured. There are many antiquities. Limerick, the county town, on the Shannon, is the fourth Irish seaport, and manufactures a little lace.