[ vair-ee-uh-buh l-pich ]
/ ˈvɛər i ə bəlˈpɪtʃ /

adjective Aeronautics, Nautical.

(of a propeller) controllable-pitch. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for variable-pitch

  • It had flaps which permitted slow landings and short take-offs, and it had retractable landing gear and variable-pitch propeller.

    The Golden Skull|John Blaine