As you may have noticed, above you will find words for "A processing unit in oil refinery that reduces the quantity of residual oil produced in the distillation of crude oil to increase the yield of more valuable middle distillates (heating oil and diesel) by thermally cracking large hydrocarbon molecules in the oil.". Hover the mouse over the word you'd like to know more about to view its definition. Click to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.