As you may have noticed, above you will find words for "A hydrocarbon (either of the two isomers of C₄H₁₀ n-butane, and 2-methyl-propane) found in gaseous petroleum fractions.". 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.