fight-or-flight

adjective

Definition of fight-or-flight

: relating to, being, or causing physiological changes in the body (such as an increase in heart rate or dilation of bronchi) in response to stress epinephrine is a fight-or-flight hormone a fight-or-flight reaction

First Known Use of fight-or-flight

1973, in the meaning defined above

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More Definitions for fight-or-flight

fight-or-flight

adjective
\ ˌfī-tər-ˈflīt\

Medical Definition of fight-or-flight

: relating to, being, or causing physiological changes in the body (such as an increase in heart rate or dilation of bronchi) in response to stress the fight-or-flight response