To save this word, you'll need to log in.
Definition of propane
: a heavy flammable gaseous alkane C3H8 found in crude petroleum and natural gas and used especially as fuel and in chemical synthesis
Keep scrolling for more
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
Odd Habits and Quirks Quiz

- Which of the following best describes an easily irritated person?

Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Odd Habits and Quirks Quiz Test your knowledge of strange human behaviors.
Take the quiz
Name That Thing: Animal Edition How many animals can you identify?
Take the quiz
Spell It Can you spell these 10 commonly misspelled words?
Take the quiz
Citation Do you know the person or title these quotes describe?
Play the game

















Share propane
Time Traveler for propane
The first known use of propane was in 1867
See more words from the same year