weirnounmasculine/ɐˈkudɨ/mediuma·çu·dePortuguesEnglishEspanolFrancaisDefinitionA small dam built in a watercourse to impound water, usually for irrigation, fish farming, or milling.The old weir on the farm still supplies water for the vegetable garden.Ducks swam peacefully in the weir.synweirdammillpondCommon collocationsweir in the riverto fish in the weirwater from the weirEtymologyDo árabe 'as-sudd' (barragem, dique).Related wordsaçudeiro