Olfactory

[ɒl'fækt(ə)rɪ] or [ɑl'fæktəri]

(adj.) of or relating to olfaction .

Editor: Miriam--From WordNet

(a.) Of, pertaining to, or connected with, the sense of smell; as, the olfactory nerves; the olfactory cells.

(n.) An olfactory organ; also, the sense of smell; -- usually in the plural.

Editor: Val

adj. pertaining to or used in smelling.

Checker: Noelle