chowder
/ˈtʃaʊdə/
noun
mass noun
A rich soup typically containing fish, clams, or corn with potatoes and onions.
Origin
Mid 18th century: perhaps from French chaudière ‘stew pot’, related to Old Northern French caudron (see cauldron).
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If you visit Boston in New England and Manhattan in New York on a trip to the US, ordering clam chowder will produce two, very different soups.