Chowder is a thick soup containing pieces of fish.
chowder in British English
(ˈtʃaʊdə)
noun
a thick soup or stew containing clams or fish
Word origin
C18: from French chaudière kettle, from Late Latin caldāria; see cauldron
chowder in American English
(ˈtʃaʊdər)
US
noun
a thick soup made variously, but usually containing onions, potatoes, and salt pork, sometimes corn, tomatoes, or other vegetables, and often, specif., clams or fish and milk