water crow
noun
1The Eurasian coot (now rare, English regional ( northern ), and Scottish ).
2The European dipper, Cinclus cinclus (now rare, English regional (chiefly northern ), and Scottish ).
3 United States regional the snakebird, Anhinga anhinga (now rare ).
Origin
Late Middle English; earliest use found in John Trevisa (c1342–?1402), translator.