odoriphore
/ˈəʊdərɪfɔː/ /əʊˈdɒrɪfɔː/(also odorophore) Chemistry and Physiology
noun
A chemical group whose presence in the molecules of a substance causes the substance to have a smell.
Origin
Early 20th century; earliest use found in Science. From classical Latin odōr-, odor odour + -i- + -phore, after German Odoriphor.