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1. A dog of a breed developed in the United States, having long drooping ears and a variously colored silky coat. It is smaller and has a more rounded head than the English cocker spaniel. Also called American cocker spaniel.
2. Chiefly British An English cocker spaniel.
[From its original use in hunting woodcocks.]
(Breeds) a small compact breed of spaniel having sleek silky fur, a domed head, and long fringed ears
[C19 cocker, from cocking hunting woodcocks]
one of a breed of small spaniels having a long square muzzle, long low-set drooping ears, and a soft flat or wavy coat.