1. 
   pre-industrial
   for the purposes of the IPCC this is defined as 1750.
   Found op http://en.wikipedia.org/wiki/Glossary_of_environmental_science
   
   
2. 
   preclinical trial
   [n] - a laboratory test of a new drug or a new invasive medical device on animal subjects
   Found op http://www.webdictionary.co.uk/definition.php?query=preclinical%20trial
   
   
3. 
   preclinical trial
   preclinical test noun a laboratory test of a new drug or a new invasive medical device on animal subjects; conducted to gather evidence justifying a clinical trial
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=preclinical%20trial
   
   
4. 
   pretrial
   [adj] - preceding an official trial 2. [n] - (law) a conference held before the trial begins to bring the parties together to outline discovery proceedings and to define the issues to be tried
   Found op http://www.webdictionary.co.uk/definition.php?query=pretrial
   
   
5. 
   pretrial
   pretrial conference noun (law) a conference held before the trial begins to bring the parties together to outline discovery proceedings and to define the issues to be tried; more useful in civ...
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=pretrial
   
   
6. 
   pretrial
   1) Kind of hearing 2) Preceding
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/pretrial/1
   
   

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