Definition of acetylene
: a colorless gaseous hydrocarbon HC≡CH used chiefly in organic synthesis and as a fuel (as in welding and soldering)
acetylenicplay \ə-ˌse-təl-ˈē-nik, -ˈe-nik\ adjective
Recent Examples of acetylene from the Web
Astronauts on a mission to Mars will need robotic helpers, but the proposition of packing them in bulk quantities or bringing bulky manufacturing rigs and explosive gases for acetylene torches to manufacture them on site isn’t feasible.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acetylene'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of acetylene
ACETYLENE Defined for English Language Learners
Definition of acetylene for English Language Learners
: a gas that burns with a very hot flame which is used to melt and connect pieces of metal
Medical Definition of acetylene
: a colorless gaseous hydrocarbon HC≡CH made especially by the action of water on calcium carbide and used chiefly in organic synthesis and as a fuel (as in welding and soldering)—called also ethyne
Seen and Heard
What made you want to look up acetylene? Please tell us where you read or heard it (including the quote, if possible).