sternutator
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ster·nu·ta·tor
(ster'nū-tā'tŏr),A substance, such as a gas, that induces sneezing.
Synonym(s): sneezing gas
sternutator
(stûr′nyə-tā′tər)n.
A substance that irritates the nasal and respiratory passages and causes coughing, sneezing, lacrimation, and sometimes vomiting.
sternutator
(stĕr′nū-tā″tor) [L. sternutatorius, causing sneezing]An agent, such as a war gas, that induces sneezing.
sternutatory, adjective