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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The first known use of fight-or-flight was in 1973

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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

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