Aqua-lung
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.
Read Also:
- Aqua pura
pure water. historical examples medical attendance was called, and i p-ssed the night in a bath of attar of roses delicately medicated with aqua pura. continental monthly, vol. iii, no iv, april 1863 various “you see i’m not afraid to risk a dip in the aqua pura,” he said. the outdoor girls on pine island […]
- Aqua regia
a yellow, fuming liquid composed of one part nitric acid and three to four parts hydrochloric acid: used chiefly to dissolve metals as gold, platinum, or the like. historical examples the “platinum chloride” of the laboratory is made by dissolving platinum in aqua regia. an elementary study of chemistry william mcpherson if the precipitate fails […]
- Aquarium
a gl-ss-sided tank, bowl, or the like, in which fish or other living aquatic animals or plants are kept. a building or inst-tution in which fish or other aquatic animals or plants are kept for exhibit, study, etc. contemporary examples aquarium drunkard when phil everly p-ssed away most bloggers posted their favorite everly brothers performance […]
- Aquatint
a process imitating the broad flat tints of ink or wash drawings by etching a microscopic crackle on the copperplate intended for printing. an etching made by this process. to etch in aquatint. historical examples the terms were, that turner was to etch and lewis to aquatint at five guineas a plate. turner william cosmo […]
- Aquatone
a lithographic process for printing by offset from a metal plate coated with photosensitized gelatin. a print so produced.