antimonite

/AE0 N T AY0 M AH0 N AY0 T/
noun
  1. 1

    (mineralogy) A grey mineral, antimony sulfide (Sb₂S₃) that is the main source of antimony; stibnite

  2. 2

    (countable, inorganic chemistry) Any of several oxyanions of antimony such as H₂SbO₃⁻; any salt containing this ion