summer oil


Definition of summer oil

1 : an oil that solidifies partly or wholly in cold weather: such as
a : cottonseed oil from which the stearin has not been removed
b : a heavy mineral lubricating oil
2 : any of several highly refined oils used as foliage sprays to control insects (such as the codling moth)

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Learn More About summer oil

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Cite this Entry

“Summer oil.” Dictionary, Merriam-Webster, Accessed 29 Jun. 2022.

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