augmentative

This term carries a clinical or technical weight, often appearing in linguistics or medical contexts. It describes a process of addition that enhances a base structure without replacing it, suggesting a supplementary layer that adds value or strength.

In speech therapy, it refers to tools that provide a voice to those who cannot speak, shifting the focus from a deficit to a functional expansion. It differs from "additive" by implying an improvement in quality or capability rather than just a numerical increase.