adrenergic
Concise Oxford English Dictionary © 2008 Oxford University Press:
adrenergic /ˌadrɪˈnəːdʒɪk/
▶adjective Physiology relating to or denoting nerve cells in which adrenalin, noradrenaline, or a similar substance acts as a neurotransmitter.
'adrenergic' also found in these Oxford entries:

