a substance produced in the body when you are excited, afraid or angry. It makes the heart beat faster and increases your energy and ability to move quickly.The excitement at the start of a race can really get the adrenaline flowing.a rush/surge of adrenalineA shot of adrenaline was given as an antidote to the wasp sting.Wordfinderadventureadrenaline,adventure,attempt,challenge,enthusiasm,escapade,excitement,explore,kick,thrillSee related entries:Excitement
See adrenaline in the Oxford Advanced American Dictionary
