air gas

noun

1

: a combustible gas made by charging air with the vapor of some volatile hydrocarbon mixture (as gasoline) and used for lighting and heating

2

: a producer gas consisting chiefly of carbon monoxide and nitrogen and made by blowing air into a producer

Word History

First Known Use

1863, in the meaning defined at sense 1

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!