Reversibility is something that is able to be reversed
An example that I searched for is
An example of reversibility is that a child might be able to recognize that his or her dog is a Labrador, that a Labrador is a dog, and that a dog is an animal.
An example of something that is reversible is a blanket that has a pattern on the front and on the back so you can use it in either direction. adjective.
