Function: adjective
Date: 1973
: relating to, being, or causing physiological changes in the body (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>
Function: adjective
Date: 1973
: relating to, being, or causing physiological changes in the body (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>
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012