Definition of Discrete variable:
A type of variable, also called a categorical or nominal variable, which has a finite number of possible values that do not have an inherent order. For example, hair color would be a discrete variable, because it can only have a limited number of values, such as red, brown, and black, that does not occur in any particular order. Different from other variable types such as continuous variables.
Meaning of Discrete variable & Discrete variable Definition