Definition of molybdenum trioxide in English:

molybdenum trioxide

noun

Chemistry
  • A stable oxide of molybdenum, MoO₃, which occurs naturally as molybdite, and is used especially as a raw material in the preparation of other molybdenum compounds.

Origin

Mid 19th century; earliest use found in Henry Roscoe (1833–1915), chemist and university administrator.