Wiktionary
interhuman
a. Between humans
Usage examples of "interhuman".
The Diaboli called this conference so that they might act as umpires on all current interhuman disputes to their own advantage, and remain the supreme court of judgment over us hereafter.
He made his answer a defiance by casting it in the Interhuman which his wife understood.
It does not want its unstable, variable, dangerous species to develop a philosophy of space conquest from which it could gain nothing it does not already have, and through which it might return eventually to the periods of interhuman conflict which preceded the Federation.
We sorted ourselves out in Interhuman while the roller trundled through tree-lined avenues.