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n. An apparatus for measuring the acuity of the sense of smell.

n. A device used to measure the acuity of a person's sense of smell

n. A device used to measure odour intensity, and concentrations of volatile organic compounds, by means of their smell.

n. An instrument for measuring the acuteness of the sense of smell.

"Using an 'olfactometer' (six tubes radiating out from a central point) packed with damp sand for the nematodes to crawl through, Ivan Hiltpold inserted capillaries into the sand, which released different odours at the end of three of the olfactometer's arms."

fluid-mantle olfactometer    double olfactometer   

olfactometric    olfactometry