dummyobject
nounUK /ˈdʌmi ˈɒbdʒɛkt/
US /ˈdʌmi ˈɑːbdʒɛkt/
A dummy object is a pretend thing used for practice or testing instead of the real thing.
The teacher gave us a dummy object to practice holding before we used the real one.
OTHER MEANINGS
2. In computer programming, a fake object that stands in for a real one during testing.
The programmer used a dummy object so the test would not need a real database.
3. A practice item used in training that looks like the real thing but is not real.
The rescue team trained with a dummy object shaped like a person.
4. An object used in place of another to fill a space or position.
They put a dummy object on the shelf where the missing statue used to be.