Oleomargarine n. : A liquid oil made from animal fats (esp. beef fat) by separating the greater portion of the solid fat or stearin, by crystallization. It is mainly a mixture of olein and palmitin with some little stearin.

Oleomargarine n. : An artificial butter made by churning this oil with more or less milk.

Example:
How does butter differ from Oleomargarine in the kind of lipid that each contains?

Taxonomy
margarine, butter, cholesterol, saturated fats, product, trans fats, United States, margarine products, foods, margarine manufacturers, vegetable oils, spreads, states, low-fat margarine, Rama margarine, trans-fatty acids, laws, consumption.

Defination from the web:
oleomargarine is sometimes abbreviated to oleo. Manufacturers produced oleomargarine by taking clarified vegetable fat, extracting the liquid portion under pressure, and then allowing it to solidify. ...