1. a liquid fat or oil, especially one that is a component of animal or vegetable fats
Usage: chemistry; technical
2. oleic acid or a compound derived from it
Usage: chemistry; technical

Examples

• Olein is the liquid component that separates from solid fats when they are heated.
• The chemist isolated olein from the rendered animal fat.
• Vegetable oils are rich in olein, which gives them their fluid consistency at room temperature.
• Olein and stearin are the two main components of natural fats.
• The olein content determines whether a fat remains liquid or solidifies.