An oil extracted from the seeds, fruit, or nuts of plants and generally considered to be a mixture of glycerides (e.g., cottonseed, linseed, corn, coconut, babassu, olive, tung, peanut, perilla, oiticica, etc.). Many types are edible. Being plant-derived products, vegetable oils are a form of biomass. Some are reported to be convertible to liquid fuels by passing them over zeolite catalysts.