controllable-pitch

[kuh n-troh-luh-buh l-pich]

adjective

(of a marine or aircraft propeller) having blades whose pitch can be changed during navigation or flight; variable-pitch.

Origin of controllable-pitch

First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019