noun, noun or participle which takes 'suru', transitive verb
instantiation
Computing term for creating an instance of a class in object-oriented programming. Used as a noun or with する.
クラスをインスタンス化してオブジェクトを生成する。
Instantiate the class to create an object.
インスタンス is the resulting instance, while インスタンス化 is the process of creating that instance.
From English 'instance' + 化 (か, '-ization'). A modern computing loanword.