"synergism" in the noun sense
1. synergy, synergism
the working together of two things (muscles or drugs for example) to produce an effect greater than the sum of their individual effects
2. synergism
the theological doctrine that salvation results from the interaction of human will and divine grace
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License