Definitions for "Discrete data"
Data that can only take a small set of particular values, usually whole numbers. For instance, you cannot actually have 2.4 children. See also Data types.
Observations made by categorizing subjects so that there is a distinct interval between any two possible values (c.f. continuous data).
data resulting from a count of separate items or events, e.g. number of people.
Geographic features containing boundaries: point, line or area boundaries.