polymethylmethacrylate


polymethylmethacrylate

, polymethyl methacrylate (pol′ē-meth′ĭl-meth″ak′rĭ-lāt″) [ poly- + methyl + methacryl(ic acid) + -ate],

PMMA

C5H8O2, a transparent, colorless acrylic polymer. It is used in optics and ophthalmology to make intraocular lenses for cataract surgery, in dentistry as a denture base material, in cosmetic surgery as a soft-tissue filler, and in the fabrication of dialysis membranes with high biocompatibility.