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WordReference Random House Learner's Dictionary of American English © 2024af•ter•burn•er /ˈæftɚˌbɜrnɚ/USA pronunciation n. [countable]- Aeronautics, Automotivea device for increasing the power of a jet engine by burning extra fuel in the exhaust gases.
WordReference Random House Unabridged Dictionary of American English © 2024af•ter•burn•er (af′tər bûr′nər, äf′-),USA pronunciation n. - Aeronauticsa device placed within, or attached to the exit of, a jet-engine exhaust pipe to produce afterburning.
- Automotivea device for burning exhaust fumes from an internal-combustion engine, as of an automobile.
Collins Concise English Dictionary © HarperCollins Publishers:: afterburner /ˈɑːftəˌbɜːnə/ n - a device in the exhaust system of an internal-combustion engine for removing or rendering harmless potentially dangerous components in the exhaust gases
- a system of fuel injection and combustion located behind the turbine of an aircraft jet engine to produce additional thrust
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