Real Dictionary

silicone
Silicone is a tough artificial substance made from silicon, which is used to make polishes, and also used in cosmetic surgery and plastic surgery.

silicone in American English
any of a group of polymerized, organic silicon compounds containing a basic structure of alternate oxygen and silicon atoms, usually with various organic groups attached to the chain: characterized by relatively high resistance to heat, water, etc. and us
noun: any of a number of polymers containing alternate silicon and oxygen atoms, as (– Si–O–Si–O–)n, whose properties are determined by the organic groups attached to the silicon atoms, and that are fluid, resinous, rubbery, extremely stable in high temperature

silicone in British English
noun: any of a large class of polymeric synthetic materials that usually have resistance to temperature, water, and chemicals, and good insulating and lubricating properties, making them suitable for wide use as oils, water-repellents, resins, etc. Chemically t