common variable

noun
UK /ˈkɒmən ˈveəriəbl/
US /ˈkɑːmən ˈveriəbl/

A common variable is a thing that can change and is shared by many people or things.

In the experiment, temperature was a common variable for all the plants.


OTHER MEANINGS

2. In statistics, a variable that is shared across groups or observations in a study.

The researchers treated age as a common variable across all participants.

3. In immunology, a group of immune system disorders called common variable immunodeficiency.

Common variable immunodeficiency can make people get sick more often.

4. A factor that affects many members of a group in the same way.

Weather was a common variable for everyone at the outdoor event.