Definition

1. Noun:
   • A positional system of numeration that uses duodecimal digits and a radix of twelve: The duodecimal system is a base-12 number system, meaning it uses twelve distinct digits to represent numerical values. It contrasts with the common decimal (base-10) system.

Usage Examples

• Noun:
  • Some ancient cultures used a duodecimal system for measurement and trade.
  • The duodecimal system is sometimes proposed as a more efficient alternative to the decimal system because twelve has more divisors than ten.

Advanced Usage

• "Duodecimal notation": Refers specifically to the method of writing numbers using the duodecimal system.
  • The concept was explained using duodecimal notation, which was unfamiliar to the students.

Variants and Related Words

• Duodecimal (adj): Relating to or based on the number twelve.
  • A duodecimal scale is used in some measurements of time and angle.
• Duodecimal number system (n): A full synonym for "duodecimal system".
  • The duodecimal number system uses the digits 0-9 and often the symbols A and B for ten and eleven.

Synonyms

• Base-twelve system: A descriptive synonym emphasizing the radix.
• Duodecimal notation: Emphasizes the representational method.

Related Phrases

• "To count in duodecimal": The act of counting using the base-12 system.
  • It took practice to learn to count in duodecimal fluently.

Related Concepts

• Radix: The base of a number system (e.g., 10 for decimal, 12 for duodecimal).
• Positional notation: A system where the position of a digit signifies its value, which is fundamental to the duodecimal system.

Noun

1. a positional system of numeration that uses duodecimal digits and a radix of twelve