Definition of silicone noun from the Oxford Advanced American Dictionary

 

silicone

 noun
noun
NAmE//ˈsɪləˌkoʊn//
 
[uncountable]
 
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a chemical containing silicon. There are several different types of silicone, used to make paint, artificial rubber, varnish, etc. a silicone breast implant
See the Oxford Advanced Learner's Dictionary entry: silicone