Vocabulary Entry

adrenaline

|noun

noun

A hormone produced by the adrenal glands that increases heart rate, muscle strength, blood pressure, and sugar metabolism, often released during stress.

Example Sentences

"The rush of adrenaline helped her perform better during the competition."

"When he heard the loud noise, an adrenaline rush made him feel alive."

"Doctors sometimes measure adrenaline levels to assess a person's response to stress."