All 5 Uses

adrenaline
in
Gym Candy
(Edited)

Everybody else was dragging, waiting for practice to end, but the adrenaline was flowing for me.
Part 2

adrenaline = “fight or flight” stimulating hormone
The pregame warm-ups were like they always were, but when the horn sounded, signaling the start of the game, instead of feeling an adrenaline rush, I felt sick inside.
Part 5

adrenaline rush = the intense feeling that comes from an increase in the "fight or flight" hormone
An adrenaline-steroid-amphetamine craziness came over me, and pretty soon I was screaming and bouncing up and down more than anyone.
Part 5

adrenaline = “fight or flight” stimulating hormone
I'd be so pumped with adrenaline, I wouldn't need it.
Part 5
Before every game the adrenaline flows, but this game was like no other.
Part 5 *

adrenaline = “fight or flight” stimulating hormone that excites the body and prepares it for action

Definitions:

(1) (adrenaline)
“fight or flight” stimulating hormone secreted by the adrenal gland in response to stress (making the body feel excited and ready for action)

Doctors are more likely to use the term epinephrine (possibly shortened to epi or EP). Adrenalin as a proper noun without the ending "e" is a trademark name for the same chemical.
(2) (meaning too rare to warrant focus)