Science Dictionary
adrenergic   (ād'rə-nûr'jĭk)  Pronunciation Key 
  1. Relating to a neuron or axon that is activated by or capable of releasing epinephrine or an epinephrine-like substance when a nerve impulse passes. The nerve endings of the sympathetic nervous system are adrenergic.

  2. Having physiological effects similar to those of epinephrine, as certain drugs.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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