coevolution
The process where two or more species reciprocally affect each other's evolution.
[U] Uncountable
This term describes a biological arms race or a mutualistic partnership where change in one organism triggers a corresponding adaptation in another. It implies a tight, interlocking dependency where neither party evolves in a vacuum, but rather in response to the other's genetic shifts.
In a broader social or technological sense, it refers to the way two systems develop together, such as how software and hardware evolve in tandem to support new capabilities. It suggests a feedback loop where the growth of one entity is inextricably linked to the growth of its partner.
Used to describe the general biological or systemic process of mutual adaptation.