flying boom

noun

: a rigid fuel pipe flexibly joined to the tail of a tanker airplane and fitted at its after end with airfoils which are controllable from the tanker and which permit it to be guided into contact with an airplane being refueled in flight

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!