'Buttermilk' definitions:
Definition of 'buttermilk'
From: WordNet
noun
Residue from making butter from sour raw milk; or pasteurized milk curdled by adding a culture
Definition of 'Buttermilk'
From: GCIDE
- Buttermilk \But"ter*milk`\, n. The milk that remains after the butter is separated from the cream. [1913 Webster]