1. 
   adventive
   [adj] - not native and not fully established
   Found op http://www.webdictionary.co.uk/definition.php?query=adventive
   
   
2. 
   Adventive
   Ad·ven'tive adjective 1. Accidental. 2. (Botany) Adventitious. Gray.
   Found op http://www.encyclo.co.uk/webster/A/34
   
   
3. 
   Adventive
   Ad·ven'tive noun A thing or person coming from without; an immigrant. [ R.] Bacon.
   Found op http://www.encyclo.co.uk/webster/A/34
   
   
4. 
   adventive
   In botany terminology, describes a plant which has been introduced to an area recently, in particular since colonisation by humans. ... (09 Oct 1997) ...
   Found op http://www.mondofacto.com/facts/dictionary?adventive
   
   
5. 
   adventive
   adjective not native and not fully established; locally or temporarily naturalized; `an adventive weed`
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=adventive
   
   
6. 
   Adventive
   • (n.) A thing or person coming from without; an immigrant. • (a.) Accidental. • (a.) Adventitious.
   Found op http://thinkexist.com/dictionary/meaning/adventive/
   
   
7. 
   adventive
   introduced accidentally (usually referring to weeds).
   Found op http://en.wikipedia.org/wiki/Glossary_of_botanical_terms
   
   
8. 
   adventive
   1) Foreign 2) Not native and not fully established
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/adventive/1
   
   

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