ALL meanings of polyvinyl acetal
pol·y·vi·nyl ac·e·tal
P p - noun polyvinyl acetal any of the class of thermoplastic resins derived by the condensation of an aldehyde with polyvinyl alcohol. 1
- noun polyvinyl acetal the slightly yellow, water-insoluble resin produced from partially hydrolyzed polyvinyl acetate and formaldehyde: used chiefly in the manufacture of lacquers, photographic film, and adhesives. 1