demonstrationmodel
nounUK /ˌdemənˈstreɪʃən ˈmɒdl/
US /ˌdemənˈstreɪʃən ˈmɑːdl/
A demonstration model is a small copy of something that shows how it works.
The teacher used a demonstration model of a volcano to show how it erupts.
RELATED WORDS
OTHER MEANINGS
2. A product made to show customers what a machine or device can do.
The salesman brought a demonstration model of the vacuum cleaner to the fair.
3. A simplified version of a system used to explain or teach an idea.
Scientists built a demonstration model of the water cycle for the museum.
4. A sample item used in a store so people can try it before buying.
The phone on the counter is just a demonstration model and cannot be sold.
5. A model used in a public show or protest to make a point.
The students carried a demonstration model of the new park design.