The mouth waters, a phrase denoting that a person or animal has a
longing desire for something, since the sight of food often causes one
who is hungry to have an increased flow of saliva.
Wa"ter ad"der (?). (Zoöl.) (a) The water moccasin. (b) The common,
harmless American water snake (Tropidonotus sipedon). See Illust. under
Water Snake.
Wa"ter*age (?; 48), n. Money paid for transportation of goods, etc., by
water. [Eng.]
Wa"ter ag"ri*mo*ny (?). (Bot.) A kind of bur marigold (Bidens
tripartita) found in wet places in Europe.
Wa"ter al"oe (?). (Bot.) See Water soldier.
Wa"ter an"te*lope (?). See Water buck.
Wa"ter a"rum (?). (Bot.) An aroid herb (Calla palustris) having a white
spathe. It is an inhabitant of the north temperate zone.
Wa"ter back` (?). See under 1st Back.
Wa"ter bail"iff (?). An officer of the customs, whose duty it is to
search vessels. [Eng.]
Wa"ter bal"last (?). (Naut.) Water confined in specially constructed
compartments in a vessel's hold, to serve as ballast.
Wa"ter ba*rom"e*ter (?). (Physics) A barometer in which the changes of
atmospheric pressure are indicated by the motion of a column of water
instead of mercury. It requires a column of water about thirty-three
feet in height.
Wa"ter bath` (?). A device for regulating the temperature of anything
subjected to heat, by surrounding the vessel containing it with another
vessel containing water which can be kept at a desired temperature;
also, a vessel designed for this purpose.
Wa"ter bat"ter*y (?). 1. (Elec.) A voltaic battery in which the
exciting fluid is water.