sternutatory
Sternutatory refers to a substance that induces sneezing. Sneezing, also known as sternutation, is a powerful, involuntary reflex expulsion of air from the nose and mouth, typically triggered by irritants in the nasal mucosa. Sternutatories work by irritating the sensitive mucous membranes of the nose, causing a rapid inhalation followed by a forceful exhalation. This reflex serves to clear the nasal passages of foreign particles, allergens, or irritants.
Common examples of sternutatories include dust, pepper, pollen, and certain chemical fumes. Historically, some sternutatory substances