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irritant

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irritant


  4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Irritant  \Ir"ri*tant\,  a.  [L.  irritans,  -antis,  p.  pr  of 
  irritare:  cf  F.  irritant.  See  {Irritate}  to  excite.] 
  Irritating;  producing  irritation  or  inflammation. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Irritant  \Ir"ri*tant\,  n.  [Cf.  F.  irritant.] 
  1.  That  which  irritates  or  excites. 
 
  2.  (Physiol.  &  Med.)  Any  agent  by  which  irritation  is 
  produced;  as  a  chemical  irritant;  a  mechanical  or 
  electrical  irritant. 
 
  3.  (Toxicology)  A  poison  that  produces  inflammation. 
 
  {Counter  irritant}.  See  under  {Counter}. 
 
  {Pure  irritant}  (Toxicology),  a  poison  that  produces 
  inflammation  without  any  corrosive  action  upon  the 
  tissues. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Irritant  \Ir"ri*tant\,  a.  [LL.  irritants,  -antis,  p.  pr  of 
  irritare  to  make  null,  fr  L.  irritus  void;  pref.  ir-  not  + 
  ratus  established.]  (Scots  Law) 
  Rendering  null  and  void;  conditionally  invalidating. 
 
  The  states  elected  Harry,  Duke  of  Anjou,  for  their 
  king,  with  this  clause  irritant;  that  if  he  did 
  violate  any  part  of  his  oath,  the  people  should  owe  him 
  no  allegiance.  --Hayward. 
 
  From  WordNet  r  1.6  [wn]: 
 
  irritant 
  n  :  something  that  causes  irritation  and  annoyance;  "he's  a 
  thorn  in  my  flesh"  [syn:  {thorn}] 




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