A momentary reversal of the airflow through the compressor section of a jet engine due to disruption of the airflow entering the engine's air intake, accompanied by loud banging noises, emission of flame, and temporary loss of thrust.
From Middle English surgen, possibly from Middle French sourgir, from Old French surgir, from Old Catalan surgir, from Latin surgō, contraction of surrigō, subrigō, from sub + regō, ultimately from Proto-Indo-European *h₃réǵeti ("to straighten; right"), from the root *h₃reǵ-; see regent.
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