rock oil

Questions about rock oil

What does rock oil mean?

rock oil means "a dark oil consisting mainly of hydrocarbons".

What is another word for rock oil?

Close synonyms include petroleum, crude oil, crude, fossil oil, oil. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is rock oil a common word?

rock oil is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.