Nidorous means smelling strongly of cooking, burning, or decaying animal matter, from Latin nidor — that specific reek, unrelated to odor despite the resemblance. English has used it since 1626. The best citation is R.A. Allen’s 2010 short story, “Monday Burning”: “A nidorous stench hangs in the air and our hands or our handkerchiefs cover our noses” — fitting, since the story’s patron spontaneously combusts at the bar.