adj.
- Of or relating to systems or a system.
- Relating to or affecting the entire body or an entire organism: systemic symptoms; a systemic poison.
- Relating to or affecting a particular body system, especially the nervous system: a systemic lesion.
- Physiology. Of or relating to systemic circulation.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.