duodecimal

adjective

duo·​dec·​i·​mal ˌdü-ə-ˈde-sə-məl 

ˌdyü-

: of, relating to, or proceeding by twelve or the scale of twelves

duodecimal noun

Examples of duodecimal in a Sentence

Recent Examples on the Web

Eventually, ancient Egyptian astronomers who used the duodecimal counting system, based on 12, divided the day and night into 12 hours each, giving us 24 hours in the day. —New York Times, 25 Apr. 2022

Word History

Etymology

Latin duodecim — more at dozen

First Known Use

1663, in the meaning defined above

Kids Definition

duodecimal

1 of 2 adjective

duo·​dec·​i·​mal

ˌd(y)ü-ə-ˈdes-ə-məl

: of, relating to, or being a system of numbers with a base of 12

duodecimal

2 of 2 noun

: a number or digit in the duodecimal system of numbers