*combinatory*

adj. 1. able to combine; tending to combine. same as combinative, 2. [ Narrower terms: integrative (vs. disintegrative) ]
Syn. -- combinative. [ WordNet 1.5 ]

2. of or relating to combinations. [ Narrower terms: combinative (vs. noncombinative) ] WordNet 1.5 ]

3. produced by a process of combining; as, a combinatorial explosion of possibilities; -- used especially in reference to mathematical or statistical processes of computing possible combinations.
PJC ]