STARTLE REACTION
\stˈɑːtə͡l ɹɪˈakʃən], \stˈɑːtəl ɹɪˈakʃən], \s_t_ˈɑː_t_əl ɹ_ɪ__ˈa_k_ʃ_ə_n]\
Definitions of STARTLE REACTION
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a complicated involuntary reaction to a sudden unexpected stimulus (especially a loud noise); involves flexion of most skeletal muscles and a variety of visceral reactions
By Princeton University
