/ˈvɪli/ or /ˈvɛri/ or /ˈvɾilɛ/ (varied pronunciations)

Definitions

1. noun

A type of aerodynamic stall or spin experienced by an aircraft, particularly in the late stages of a spin, characterized by a high rotation rate and a low angle of attack.

“The pilot struggled to recover from the vrille and bring the plane back under control.”

2. proper noun

A type of aircraft used by the United States Air Force during World War II.

“The Vrille was a high-speed aircraft designed for reconnaissance missions.”