Meaning & use

siloxane

noun·Advanced

A chemical compound whose molecules contain a chain of alternating silicon and oxygen atoms, used to make silicones.

See it in a sentence

The sealant contains a siloxane polymer that keeps the joint flexible and waterproof.

Manufacturers add siloxane compounds to cosmetics to give creams a smooth, silky texture.

A note on using this word

Siloxane is a chemistry term for the Si-O backbone itself, while 'silicone' usually refers to the finished rubbery or oily material built from it.

Words with a similar meaning

silicone

Choose a synonym to suit the sentence. Meanings can overlap without being identical.

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