Ou″sel (o͝o″z'l), n. [OE. osel, AS. ōsle; akin to G. amsel, OHG. amsala, and perh. to L. merula blackbird. Cf. Merle, Amsel.] (Zoöl.) One of several species of European thrushes, especially the blackbird (Merula merula, or Turdus merula), and the mountain or ring ousel (Turdus torquatus). [Written also ouzel.]
Rock ousel(Zoöl.), the ring ousel. — Water ousel(Zoöl.), the European dipper (Cinclus aquaticus), and the American dipper (C. Mexicanus).