| Answer | Crossword Clue |
|---|---|
| tricyclic | (of an organic compound) Having three fused rings of atoms in its molecule |
| polycyclic | (of an organic compound) Having several rings of atoms in the molecule |
| tricyclic | of a chemical compound, having three rings in its molecular structure / a tricyclic drug, used as an antidepressant |
| secondary | (of an organic compound) Having its functional group located on a carbon atom that is bonded to two other carbon atoms |
| bicyclic | Having two rings of atoms in its molecule |
| polyunsaturated | (of an organic compound, esp. a fat or oil molecule) Containing several double or triple bonds between carbon atoms. Polyunsaturated fats, which are usually of plant origin, are regarded as healthier in the diet than saturated fats |
