sil·i·cone 
/ˈsɪləˌkoʊn/ noun
/ˈsɪləˌkoʊn/ noun [noncount] : a chemical that does not let water or heat pass through and that is used to make rubber, grease, and in plastic surgery
▪ a prosthesis made of silicone — often used before another noun ▪ silicone breast implants
▪ a prosthesis made of silicone — often used before another noun ▪ silicone breast implants
