working model
nounUK /ˈwɜːkɪŋ ˈmɒdl/
US /ˈwɜːrkɪŋ ˈmɑːdl/
A working model is a small copy of something that can move or do things like the real one.
The class built a working model of a volcano that really erupted.
RELATED WORDS
OTHER MEANINGS
2. A person or thing used as a good example to follow.
She is a working model of kindness for the whole team.
3. A theory or idea that helps explain how something works.
Scientists use a working model of the atom to teach students.
4. A version of a product that is complete enough to be tested.
The engineers showed a working model of the new robot arm.