noun / verb
prototype
PROH-tuh-type/ˈprəʊtətaɪp/
An original model that serves as a basis for developing something.
The designer tests the stability of a cardboard chair prototype.

Etymology
A prototype is literally a “first pattern”: an original model after which something is formed. In design, that first model provides a basis for testing and further development.
In context
more difficult to produce [Music] them a prototype must be built first and tested to confirm that the blades can meet design requirements
More examples
- Her handmade prototype becomes the basis for the finished lamp.
- We prototype the handle to check how it feels.
- Engineers test several prototypes before choosing a final design.
Forms
prototype · prototypes · prototyped · prototyping
Similar words
- model
- Can represent something existing rather than guide a new design.
- mockup
- Usually shows appearance or layout rather than full working function.