adrenalin

    Article

    A hormone, also known as epinephrine, that is secreted by the adrenal glands, especially when a person is under stress, because it increases the body's ability to respond to threats. While spelling adrenalin without an extra "e" is technically correct, the more common spelling of this word is adrenaline with the "e."

    Photo Credit

     
    "Epinephrine vial 1mg (Adrenalin)" by Jfoldmei is licensed under CC BY.

    References

     
    Encyclopædia Britannica Online
         N.d.   Epinephrine and noepinephrine.
             http://www.britannica.com/EBchecked/topic/190049/epinephrine-and-norepi…,
             accessed December 11, 2014.