mustard oil

American  

noun

1. oil expressed from the seed of mustard, used chiefly in making soap.

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mustard oil British  

noun

1. an oil that is obtained from mustard seeds and used in making soap

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Etymology

Origin of mustard oil

First recorded in 1840–50

Example Sentences

"Other natural ingredients, such as mustard oil, or the topical medication imiquimod are known to also stimulate the TRPA1 receptor, but unlike rosemary, those can cause irritation and inflammation."

From Science Daily

The researchers found that people carrying three so-called Neanderthal variants in the gene SCN9A, which is implicated in sensory neurons, are more sensitive to pain from skin pricking after prior exposure to mustard oil.

From Science Daily

Coconut and mustard oil are a stellar combination here, as the sweetness of the coconut tempers the bitterness of the mustard oil and seeds.

From Seattle Times

In the north, where the pickles are more often preserved in mustard oil, you may come across a mixed pickle that first became popular in Pakistan in the 1930s called pachranga.

From Salon

The bitter sulfurous compounds are part of a Brussels sprouts' sophisticated defense system, known as the mustard oil bomb, that repels insects from biting them but attracts those insects that allow pollination.

From Salon