| Answer | Crossword Clue |
|---|---|
| hydroxyl | Of or denoting the radical ?OH, present in alcohols and many other organic compounds |
| carbonyl | Of or denoting the divalent radical =C=O, present in such organic compounds as aldehydes, ketones, amides, and esters, and in organic acids as part of the carboxyl group |
| carboxyl | Of or denoting the acid radical ?COOH, present in most organic acids |
| alicyclic | Relating to or denoting organic compounds that combine cyclic structure with aliphatic properties, e.g., cyclohexane and other saturated cyclic hydrocarbons |
