fuel oil
noun
: an oil that is used for fuel and that usually has a higher flash point than kerosene
Examples of fuel oil in a Sentence
Recent Examples on the Web
The group estimates families abandoning fuel oil or propane could save closer to $1,000 annually.
—
Jessica Towhey, Boston Herald, 5 Dec. 2025
Officials cited vehicle emissions, industrial activity, and heavy fuel oil use as the primary sources of pollution.
—Amir Daftari, MSNBC Newsweek, 24 Nov. 2025
Since the 1960s, heavy fuel oil—a residual product from refining gasoline, diesel, and kerosene—has been the principal energy source for ocean-faring vessels.
—Aman Tripathi, Interesting Engineering, 29 Oct. 2025
Heavy fuel oil also produces black carbon, a kind of soot that can settle on the ice and accelerate melt by darkening the surface, meaning more of the sun’s energy is absorbed.
—Laura Paddison, CNN Money, 3 Oct. 2025
See All Example Sentences for fuel oil
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jessica Towhey, Boston Herald, 5 Dec. 2025
Officials cited vehicle emissions, industrial activity, and heavy fuel oil use as the primary sources of pollution.
—Amir Daftari, MSNBC Newsweek, 24 Nov. 2025
Since the 1960s, heavy fuel oil—a residual product from refining gasoline, diesel, and kerosene—has been the principal energy source for ocean-faring vessels.
—Aman Tripathi, Interesting Engineering, 29 Oct. 2025
Heavy fuel oil also produces black carbon, a kind of soot that can settle on the ice and accelerate melt by darkening the surface, meaning more of the sun’s energy is absorbed.
—Laura Paddison, CNN Money, 3 Oct. 2025
See All Example Sentences for fuel oil
Cite this Entry
“Fuel oil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fuel%20oil. Accessed 22 Dec. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share