Found 2 items, similar to buttermilk.
English → English (WordNet) Definition: buttermilk buttermilk n : residue from making butter from sour raw milk; or pasteurized milk curdled by adding a culture
English → English (gcide) Definition: Buttermilk Buttermilk \But"ter*milk`\, n. The milk that remains after the butter is separated from the cream. [1913 Webster]