All 5 Uses

adrenaline
in
Hush, Hush
(Auto-generated)

I sped forward with the force of adrenaline.†
p. 52.3 *

adrenaline = “fight or flight” stimulating hormone
But I knew better, and a jolt of nervous adrenaline confirmed it.†
p. 255.3
While I waited for the operator to pick up, I glanced back at the bag lady's body, and that's when I felt cold adrenaline shoot through me.†
p. 275.1
My legs trembled with adrenaline.†
p. 354.9
I turned around, the adrenaline letdown causing my knees to shake.†
p. 374.8

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)