[ So called in allusion to its dark plumage. ] (Zool.) (a) The dipper. (b) The European coot. [ 1913 Webster ]
(Bot.) An aquatic kind of buttercup (Ranunculus aquatilis), used as food for cattle in parts of England. [ 1913 Webster ]
Great water crowfoot, an American water plant (Ranunculus multifidus), having deep yellow flowers. [ 1913 Webster ]