a keep-fit regime in which exercises are performed standing up in a swimming pool
a brand of underwater breathing apparatus for a swimmer or skin-diver, consisting of a cylinder of compressed air that is strapped to the back, a flexible tube connecting the cylinder with the swimmer’s mouth, and an automatic pressure regulator that controls the flow of air into the lungs. Historical Examples He was suddenly impatient to […]
a medieval ewer, often made in grotesque animal forms. Ecclesiastical. a basin used by a celebrant for washing the hands during the saying of the Mass.
an undersea explorer, especially one who skin-dives from or lives for an extended period of time in a submerged dwelling. a skin-diver. noun a person who lives and works underwater a person who swims or dives underwater n. 1881, from aqua- + ending from Greek nautes “sailor” (see naval).
noun any one of a group of proteins in cell membranes that allow the passage of water across the membrane