olfactor

“The olfactor gave a stench reading; and the creature's back was covered with insectoid forms.”

First Fall

“At the same time, the olfactor reading went off the scale, and a repellent stench filled the little clearing.”

First Fall

“-- And if thy nose, sir Spirit, were anything more than the ghost of an olfactor, I would offer it a propitiatory pinch, that you might the more feelingly understand the merit of the said verses, and admire them accordingly.”

Sir Thomas More, or, Colloquies on the Progress and Prospects of Society