adjective.
Of, relating to, or done by collaboration.
noun.
An organized group of people or entities who collaborate towards a particular goal
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
accomplished by collaboration
Word Usage
"We looked into what I term collaborative investments about 5 years ago and concluded that the concept was flawed – mainly due to the long time series needed for each participant."