n. the sense of smell; the detection of airborne molecules
the GNU version of the Collaborative International Dictionary of English
n. The sense by which the impressions made on the olfactory organs by the odorous particles in the atmosphere are perceived.
The Century Dictionary and Cyclopedia
n. The sense of smell or faculty of smelling; an olfactory act or process; smell; scent.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the faculty that enables us to distinguish scents
Word Usage
"Research on smell - what scientists call olfaction - is discussed in the December issue of the Reader's Digest magazine in an article by Paula Dranov."