Definition of "sulfurous"

sulfurous

/ˈsʌlfəɹəs/

adjective
comparative more sulfurous, superlative most sulfurous
1. (American spelling) Containing sulfur.
  Quotations
  It must be so—I will arise and wakenThe multitude, and like a sulphurous hill,Which on a sudden from its snows had shakenThe swoon of ages, it shall burst, and fillThe world with cleansing fire; it must, it will—It may not be restrained!
  1817 December, Percy Bysshe Shelley, “The Revolt of Islam. […]”, in [Mary] Shelley, editor, The Poetical Works of Percy Bysshe Shelley. […], volume I, London: Edward Moxon […], published 1839, page 191
2. (chemistry) Of, or relating to sulfur, especially in its lower oxidation state.