| a suffix used to form names of unsaturated hydrocarbons (anthracene; benzene), esp. those of the alkene series (butylene). |

| -ene suff. An unsaturated organic compound, especially one containing a double bond between carbon atoms: ethylene. [From Greek -ēnē, feminine adj. suff.] |
-ene suff.
An unsaturated organic compound, especially one containing a double bond between carbon atoms: ethylene.