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An oil is any neutral, nonpolar chemical substance that is a viscous liquid at ambient temperatures and is both hydrophobic (immiscible with water, literally "water fearing") and lipophilic (miscible with other oils, literally "fat loving").
Added 10/11/2014 11:44:39 AM
This answer has been confirmed as correct and helpful.
Confirmed by
sujaysen [10/11/2014 12:21:22 PM]