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noun \-ˌī-sō-ˌthī-ə-ˈsī-ə-ˌnāt, -nət\
Definition of ALLYL ISOTHIOCYANATE
: a colorless pungent irritating liquid ester C4H5NS that is the chief constituent of mustard oil used in medicine and is used as a flavoring agent and as a medical counterirritant—called also allyl mustard oil
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