GNU Collaborative International Dictionary of English

Found one definition

1.       
   Drift, a. That causes drifting or that is drifted; movable by wind or currents; as, drift currents; drift ice; drift mud.
   Kane.
   
   1913 Webster
   Drift anchor. See Sea anchor, and also Drag sail, under Drag, n. -- Drift epoch (Geol.), the glacial epoch. -- Drift net, a kind of fishing net. -- Drift sail. Same as Drag sail. See under Drag, n.
   1913 Webster