adoption
n. C / Un. the act of legally taking a child into your family as your own. It can also mean starting to use a new idea, plan, or technology.
n. the legal process of assuming parental responsibility for a child; alternatively, the formal acceptance or implementation of a new system, policy, or technology.
The adoption of the new software was very fast.
After years of fostering, the family finally completed the legal adoption of their youngest daughter.
The rapid adoption of renewable energy technologies depends as much on government subsidies as it does on the public's willingness to change long-standing habits.
Borrowed from French adoption, from Latin adoptio, allied to adoptare (“to adopt”). Equivalent to adopt + -ion.
Uncountable when referring to the general process or concept; countable when referring to a specific instance or legal case.