From Longman Dictionary of Contemporary Englishadrenalina‧dren‧a‧lin, adrenaline /əˈdrenəl-ɪn/ noun [uncountable] HBHMa chemical produced by your body when you are afraid, angry, or excited, which makes your heart beat faster There’s nothing like a good horror film to get the adrenalin going (=make you feel nervously excited).
Examples from the Corpus
adrenalin• There was no essential adrenalin flowing.• A prickling sensation between my eyes made my nose run and white-hot adrenalin scalded the subcutaneous layer beneath my skin.• It was a deliciously decadent daydream which stirred the blood, sending adrenalin pumping through his system.• Yet sleepless adrenalin energy, like sixteen cups of coffee, makes for a certain wackiness.• Although the adrenalin may flow, you owe it to yourself not to become carried away.• The drinks did it, I know, and the adrenalin rush of the entire evening.• The urgency kicks in, the adrenalin flows a bit faster, the pulse quickens.• The feeling sent the adrenalin rushing around so fast that it threatened to wear me out before I got to my destination.get the adrenalin going• He actually got the adrenalin going, forced the pendulum which had almost stopped to swing again. 