| Answer | Crossword Clue |
|---|---|
| petrochemically | PETROCHEMICAL, of or relating to chemicals obtained from petroleum |
| petrochemical | of or relating to chemicals obtained from petroleum / a chemical obtained from petroleum |
| petrochemical | Relating to or denoting substances obtained by the refining and processing of petroleum or natural gas |
| petrochemicals | PETROCHEMICAL, a chemical obtained from petroleum |
| vaseline | to cover or smear with a translucent gelatinous substance obtained from petroleum |
| parametric | Relating to or denoting a process in which amplification or frequency conversion is obtained using a device modulated by a pumping frequency, which enables power to be transferred from the pumping frequency to the signal |
