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triggermore about trigger

trigger

 

  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Trigger  \Trig"ger\,  n.  [For  older  tricker,  from  D.  trekker,  fr 
  trekken  to  draw,  pull  See  {Trick},  n.] 
  1.  A  catch  to  hold  the  wheel  of  a  carriage  on  a  declivity. 
 
  2.  (Mech.)  A  piece,  as  a  lever,  which  is  connected  with  a 
  catch  or  detent  as  a  means  of  releasing  it  especially 
  (Firearms),  the  part  of  a  lock  which  is  moved  by  the 
  finger  to  release  the  cock  and  discharge  the  piece. 
 
  {Trigger  fish}  (Zo["o]l.),  a  large  plectognath  fish 
  ({Balistes  Carolinensis}  or  {B.  capriscus})  common  on  the 
  southern  coast  of  the  United  States,  and  valued  as  a  food 
  fish  in  some  localities.  Its  rough  skin  is  used  for 
  scouring  and  polishing  in  the  place  of  sandpaper.  Called 
  also  {leather  jacket},  and  {turbot}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  trigger 
  n  1:  activates  the  firing  mechanism  of  a  gun  [syn:  {gun  trigger}] 
  2:  an  act  that  sets  in  motion  some  course  of  events  [syn:  {induction}, 
  {initiation}] 
  v  1:  actuate;  "trigger  a  reaction"  [syn:  {trip},  {actuate},  {activate}, 
  {set  off},  {spark  off},  {spark},  {trigger  off},  {touch 
  off}] 
  2:  pull  the  trigger  on  "Trigger  a  weapon" 
  3:  release  a  trigger;  "trigger  a  gun" 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  trigger 
 
    An  action  causing  the  automatic  invocation  of  a 
  procedure,  for  instance  to  preserve  {referential  integrity}. 
  A  triggers  goes  into  effect  when  a  user  attempts  to  modify 
  data  with  an  insert,  delete,  or  update  command.  A  trigger  can 
  instruct  the  system  to  take  any  number  of  actions  when  a 
  specified  change  is  attempted.  By  preventing  incorrect, 
  unauthorized,  or  inconsistent  changes  to  data,  triggers  help 
  maintain  the  integrity  of  the  database. 
 
  [Sybase  SQL  Server  Release  10.0  Transact-SQL  User's  Guide]. 
 
  (1995-02-22)




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