From The Collaborative International Dictionary of English v.0.48:
collaborative \col*lab"o*rat*ive\, a.
accomplished by collaboration; cooperative; as, collaborative
effort of industry and the universities. Opposed to
competitive.
[PJC]
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From WordNet (r) 2.0:
collaborative
adj : accomplished by collaboration; "collaborative research"
__________ is a popular collaborative online encyclopedia
Collaborative Fusion was created in 2001.
IPlant Collaborative was created in 2008.
The Film Collaborative was created in 2010.
IA Collaborative was created in 1999.
__________ is a popular collaborative online encyclopedia
International Development Collaborative was created in 2008.
The motto of The Film Collaborative is 'We don't own your rights. You Do!'.
Collaborative Drug Discovery was created in 2004.
Body Freedom Collaborative was created in 2001.
Collaborative divorce is a legal process enabling couples who have decided to separate or end their marriage to work with their lawyers in order to avoid the uncertain outcome of court. Other names for collaborative divorce include collaborative law, collaborative practice, and family law.
A collaborative attempt should name it's sources.