adverb
- In a manner relating to or based on the number twelve or a base-12 numerical system.
Usage: technical; mathematics
Examples
- The duodecimal system counts duodecimally, using digits 0 through 11.
- Some ancient civilizations organized their calendars duodecimally.
- In base-12 arithmetic, numbers are expressed duodecimally rather than decimally.
- The measurement system was structured duodecimally, with twelve units forming the next level.