Meaning of ketene


Pronunciation: (kē'tēn), [key]
— n. Chem.
  1. a colorless, poisonous gas, CHO, irritating to the lungs, prepared from acetone or acetic acid by pyrolysis: used chiefly in the manufacture of certain commercial chemicals, as acetic anhydride and aspirin.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.