ALL meanings of ketene
ke·tene
K k - noun ketene A pungent colorless reactive gas, used as an intermediate in chemical synthesis. 1
- noun ketene a colorless, poisonous gas, C 2 H 2 O, 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. 1
- noun ketene (organic chemistry) any of a class of unsaturated ketones, having a general formula R1R2C=C=O, that react as if they were inner acid anhydrides. 0
- noun ketene (organic chemistry) the parent compound of this class, CH2=C=O, an unstable, reactive colourless gas. 0
- noun ketene a colourless irritating toxic gas used as an acetylating agent in organic synthesis. Formula: CH2:CO 0
- noun ketene a colorless, toxic gas, H2C∶CO, with a penetrating odor, made by passing acetone or acetic acid through hot metal tubes: used esp. as an acetylating agent 0
- noun ketene any of a series of related organic compounds containing the C∶CO group 0