butylene
noun
bu·tyl·ene ˈbyü-tə-ˌlēn 
: any of three isomeric hydrocarbons C4H8 of the ethylene series obtained usually by cracking petroleum
Example Sentences
Recent Examples on the Web In addition to the 2% salicylic acid, this liquid leave-on exfoliant has a refreshingly short list of ingredients, including moisturizing butylene glycol and calming green tea extract. 
Sarah Jacoby, SELF, 22 Apr. 2020
Sarah Jacoby, SELF, 22 Apr. 2020 Word History
First Known Use
1851, in the meaning defined above
Medical Definition
butylene
noun
bu·tyl·ene ˈbyüt-ᵊl-ˌēn
: any of three isomeric hydrocarbons C4H8 of the ethylene series obtained usually by cracking petroleum
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- Leatheroid
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