A substance, such as a gas, that induces sneezing. SYN: sneezing gas.
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ster·nu·ta·tor 'stər-nyə-.tāt-ər n an agent that induces sneezing and often lacrimation and vomiting
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ster·nu·ta·tor (sturґnu-ta″tər) a gas or other substance that causes sneezing.Medical dictionary. 2011.