: a heavy flammable gaseous alkane C3H8 found in crude petroleum and natural gas and used especially as fuel and in chemical synthesis
Examples of propane in a Sentence
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Röösli noted that the injector, one of the most critical parts of the propulsion unit, had to precisely mix propane and liquid oxygen, and prevent destructive pressure waves from traveling backward into the supply lines.
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Georgina Jedikovska, Interesting Engineering, 18 May 2026
Don't use a propane torch on a windy day, and be careful to avoid burning either yourself or any of the objects adjacent to the weeds.
—David Beaulieu, The Spruce, 16 May 2026
Certain substances, including butane and propane, are especially associated with this risk.
—Katia Hetter, CNN Money, 15 May 2026
Avoid using candles, gas, propane, wood-burning stoves, fireplaces or aerosol sprays.
—Hali Smith, Idaho Statesman, 8 May 2026
See All Example Sentences for propane
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Georgina Jedikovska, Interesting Engineering, 18 May 2026
Don't use a propane torch on a windy day, and be careful to avoid burning either yourself or any of the objects adjacent to the weeds.
—David Beaulieu, The Spruce, 16 May 2026
Certain substances, including butane and propane, are especially associated with this risk.
—Katia Hetter, CNN Money, 15 May 2026
Avoid using candles, gas, propane, wood-burning stoves, fireplaces or aerosol sprays.
—Hali Smith, Idaho Statesman, 8 May 2026
See All Example Sentences for propane
Cite this Entry
“Propane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/propane. Accessed 21 May. 2026.
Copy CitationKids Definition
propane
noun
pro·pane
ˈprō-ˌpān 
: a heavy flammable gas found in crude petroleum and natural gas and used especially as fuel and in the chemical industry
Medical Definition
propane
noun
pro·pane
ˈprō-ˌpān
: a heavy flammable gaseous alkane C3H8 found in crude petroleum and natural gas and used especially as fuel and in chemical synthesis
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