Although scientists have yet to pin down any biological basis for cigarette smokers' impaired performance on the smell test, Doty says he suspects that certain chemicals in smoke . . . damage the olfactory receptor cells in the nose.
an assessment of a subject's ability to detect and distinguish odors
Heceleme
an as·sess·ment of a subject's a·bi·li·ty to de·tect and dis·tin·guish odors