pneumatique

noun

pneu·​ma·​tique

¦n(y)ümə¦tēk

plural -s

: a letter or message transmitted by pneumatic dispatch

Word History

Etymology

French, from pneumatique, adjective, pneumatic, from Latin pneumaticus

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!