1.octal digit - a digit from 0 to 7 in octal notationdigit, figure - one of the elements that collectively form a system of numeration; "0 and 1 are digits"
octal digit
octal digit
[′äkt·əl ′dij·ət] (mathematics) The symbol 0, 1, 2, 3, 4, 5, 6, or 7 used as a digit in the octal number system.