combinatory

Short definition from Wiktionary

Adjective

1. 1
   Of, relating to, or derived from a combination or combinations; combinative or combinatorial.
2. 2
   Of, relating to, or derived from a combination or combinations; combinative or combinatorial: conditioned on a combination of phonemes (rather than a phoneme changing by itself in any position)
3. 3
   Having the ability to combine; combinable, combinational or combining.