systemic

[si-stem-ik]
adjective
1.
of or pertaining to a system.
2.
Physiology, Pathology.
a.
pertaining to or affecting the body as a whole.
b.
pertaining to or affecting a particular body system.
3.
(of a pesticide) absorbed and circulated by a plant or other organism so as to be lethal to pests that feed on it.

Origin:
1795–1805; system + -ic

systemically, adverb
nonsystemic, adjective

systematic, systemic.
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World English Dictionary
systemic (sɪˈstɛmɪk, -ˈstiː-)
 
adj
1.  systematic another word for systematic
2.  physiol (of a poison, disease, etc) affecting the entire body
3.  (of a pesticide, fungicide, etc) spreading through all the parts of a plant and making it toxic to pests or parasites without destroying it
 
n
4.  a systemic pesticide, fungicide, etc
 
sys'temically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

systemic
1803, irregularly formed from system, used in medicine and biology for differentiation of meaning from systematic.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

systemic sys·tem·ic (sĭ-stěm'ĭk)
adj.

  1. Of or relating to a system.

  2. Of, relating to, or affecting the entire body or an entire organism.

  3. Relating to or affecting a particular body system, especially the nervous system.

  4. Relating to systemic circulation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Systemic factors may have selected these individuals for ruthlessness.
It is metabolized and excreted so quickly that systemic antibacterial reactions
  are quite rare.
The outlook for patients with systemic scleroderma has generally improved over
  the years.
Today, there is no hint of systemic police corruption.
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