a synthetic rubber produced by the polymerization of chloroprene: it is highly resistant to oil, heat, light, and oxidation
See neoprene in American Heritage Dictionary 4
(nēˈə-prēnˌ)
noun
A synthetic rubber produced by polymerization of chloroprene and used in weather-resistant products, adhesives, shoe soles, sportswear, paints, and rocket fuels.