'Red dog' definitions:
Definition of 'Red dog'
From: GCIDE
- Red dog \Red dog\, or Red-dog flour \Red`-dog" flour\ The lowest grade of flour in milling. It is dark and of little expansive power, is secured largely from the germ or embryo and adjacent parts, and contains a relatively high percentage of protein. It is chiefly useful as feed for farm animals. [Webster 1913 Suppl.]