1. Plural of oleomargarine; butter substitutes made from vegetable or animal oils blended with milk or water, often used as a cheaper alternative to butter.
Usage: Chiefly historical or technical; the term 'margarine' is now more common in everyday use.; The product was widely marketed in the early-to-mid 20th century.

Examples

• During the Great Depression, many families relied on oleomargarines as an affordable spread.
• The factory produced several brands of oleomargarines for distribution across the region.
• Early oleomargarines were often sold in plain white form, with a packet of yellow dye included.
• Oleomargarines became increasingly popular after World War II.
• The nutritional content of oleomargarines differed significantly from natural butter.