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Vocabulary Entry
norepinephrine
|noun
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N
noun
A neurotransmitter and hormone involved in the body's fight or flight response, regulating arousal and alertness.
Example Sentences
"Norepinephrine levels increase during stressful situations."
"Doctors may measure norepinephrine to assess certain health conditions."
"The drug works by increasing the availability of norepinephrine in the brain."