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Pronunciation varies by accent · noun
Any automotive oil that is synthesized, as opposed to being petroleum-based..
Use bio-oil when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Bio-oil means Any automotive oil that is synthesized, as opposed to being petroleum-based..
Common synonyms include biocrude.
The opposite depends on the specific sense.
Use bio-oil where its definition matches the intended context.
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