Wa"ter oat` (?). Indian rice. See under Rice.
Wa"ter o*pos"sum (?). (Zoöl.) See Yapock, and the Note under Opossum.
Wa"ter or"de*al (?). Same as Ordeal by water. See the Note under
Ordeal, n., 1.
{ Wa"ter ou"sel (?), Wa"ter ou"zel }. (Zoöl.) Any one of several
species of small insessorial birds of the genus Cinclus (or
Hydrobates), especially the European water ousel (C. aquaticus), and
the American water ousel (C. Mexicanus). These birds live about the
water, and are in the habit of walking on the bottom of streams beneath
the water in search of food.
Wa"ter pars"nip (?). (Bot.) Any plant of the aquatic umbelliferous
genus Sium, poisonous herbs with pinnate or dissected leaves and small
white flowers.