hexavigesimal /ˌhɛksəˈvaɪd͡ʒɛsɪməl/noun 2adjective 1forms 1 noun2 •A number system with base twenty-six, using the digits 0–9 and A–P (or A-Z without numerals). •A number expressed in the hexavigesimal system. adjective1 •Of a number, expressed in hexavigesimal. formshexavigesimals
