English Reference

Word

propane

US/ˈpɹoʊˌpeɪn/

UK/pɹˈəʊpeɪn/

Definitions

01fuel gas

B2 · Science

n. a gas used as fuel for cooking, heating, and engines, usually kept in pressurized metal containers.

n. a colourless, flammable gaseous alkane found in natural gas and petroleum, commonly used as a fuel for domestic heating and portable stoves.

“We need to refill the propane tank before we start the barbecue.”

“Many rural households rely on large propane cylinders for central heating because they lack access to the municipal natural gas grid.”

Synonyms

fuelbottled gasLPG

02chemical compound

C1 · Science

n. a specific type of chemical made of carbon and hydrogen.

n. an aliphatic hydrocarbon with the chemical formula C₃H₈, existing as a gas at standard temperature and pressure.

“In chemistry class, we learned that propane has three carbon atoms.”

“The industrial synthesis of various organic compounds often begins with the catalytic processing of propane and other light alkanes.”

Technical

Real-World Examples

“Real estate agent Lori Benkert bought an extra 4.5kg (10 pound) container of propane so that she could cook on the barbecue if power shut off.”
Al Jazeera · 7 Sept 2026

Etymology

From clipping of propionic acid + -ane, from French propionique, from Ancient Greek πρό (pró) + πίων (píōn, “fat”). Analyzable as prop- + -ane, borrowing or calque of German Propan.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Level
B2 · Upper Intermediate
Frequency
Frequent
Updated

Scan code

englishreference.com/q/propane

English Reference