adjective
Definition: This word describes something that is related to the number twelve or is based on the number twelve, such as a system that uses twelve as its base.
Example: In mathematics, the duodecimal system is an alternative to the decimal system, using twelve as its base.
noun
Definition: A term that refers to the number twelve or a system based on twelve.
Example: In a duodecimal system, numbers are counted in base twelve instead of the usual base ten.