of or relating to numbers; of the nature of a number.
indicating a number: numerical symbols.
bearing or designated by a number.
expressed by numbers instead of letters: numerical cryptography; numerical equations.
of or relating to one's skill at working with numbers, solving mathematical problems, etc.: tests for rating numerical aptitude.
Mathematics, absolute (def 12).
Origin: 1615–25; < Latin numer(us) number + -ical