dozenal /ˈdʌzənəl/adjective 1noun 1forms 1 adjective1 •(rare) Of a number, expressed in base 12. noun1 •(rare) A value in a number system that uses 12 as its base.Many dozenalists have devised their own set of numerals, or they adopt the symbols prevalent in their dozenal society. — 2010 formsdozenals