
noun:
 Either associated with the digits 0 or 1, found in the binary number system.
 Either regarding the characters 0 or 1 used in the binary numeral system.
 either 0 or 1 in binary notation
 Either of digits 0 or 1, utilized in the binary quantity system.
 Either of this figures 0 or 1 used in the binary numeral system.
 either 0 or 1 in binary notation
How would you define binary digit?