du·o·dec·i·mal I. \|düə|desəməl, -üō|-\adjective Etymology: Latin duodecim twelve + English -al : of or relating to twelve or twelfths : proceeding in computation by twelves : expressed in the scale of twelves • du·o·dec·i·mal·i·ty\ˌ ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ˈmaləd.ē\noun-es • du·o·dec·i·mal·ly\ˌ ̷ ̷ ̷ ̷ˈdesəməlē\adverb II. noun (-s) : a twelfth part