pilot balloon

noun

: a small unmanned balloon sent up to show the direction and speed of the wind

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!

Dictionary Entries Near pilot balloon

Cite this Entry

“Pilot balloon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pilot%20balloon. Accessed 29 Mar. 2024.

Kids Definition

pilot balloon

noun
: a small unmanned balloon sent up to show the direction and speed of the wind
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!