Word Study
adrenaline
CIDE DICTIONARY
adrenaline, n.
. [WordNet 1.5]
adrenaline, n.
a hormone secreted by the adrenal medulla that acts as a powerful stimulant in reponse to fear or stress; it stimulates autonomic nerve action. It can be obtained as a crystalline substance, C9H13NO3 . It is used in medicine as a vasoconstrictor (hemostatic) and cardiac stimulant, also to reduce allergic reactions and to stimulate the heart in cases of cardiac arrest. [Webster 1913 Suppl.]
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