/ˈtrɪkˌsaɪl/ or /ˈtriːkaɪl/ or /ˈtrɪksɪl/ (roman numerals) /ˈtrɪksaɪl/ (numeral)

Definitions

1. noun

the third part of a Roman numeral system, representing the number 30

“The third part of the numeral system, xxxiii, is thirty in Roman numerals.”