oleicoil
Oleicoil is a term that appears to be a portmanteau of "oleic" and "oil." "Oleic" refers to oleic acid, a monounsaturated fatty acid with the formula C18H34O2. It is the most common fatty acid in nature and is found in vegetable and animal fats. Oils, in a general sense, are liquids at room temperature and are typically nonpolar molecules, often triglycerides which are esters of glycerol and fatty acids.
Therefore, "oleicoil" might refer to a specific type of oil that is predominantly composed of oleic acid
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