Asifa Majid & Niclas Burenhult: Odors are expressible in language, as long as you speak the right language. Cognition 130(2), 2014.
“From Plato to Pinker there has been the common belief that the experience of a smell is impossible to put into words. Decades of studies have confirmed this observation. But the studies to date have focused on participants from urbanized Western societies. Cross-cultural research suggests that there may be other cultures where odors play a larger role. The Jahai of the Malay Peninsula are one such group. … Our findings show that the long-held assumption that people are bad at naming smells is not universally true. Odors are expressible in language, as long as you speak the right language.”
Also: Ewelina Wnuk & Asifa Majid: Revisiting the limits of language: The odor lexicon of Maniq. Cognition 131 (1), 2014.