binary digit
nounUK /ˈbaɪ.nər.i ˈdɪdʒ.ɪt/
US /ˈbaɪ.nɚ.i ˈdɪdʒ.ɪt/
A binary digit is a tiny piece of computer information that is either a 0 or a 1.
Each binary digit in the message stands for either zero or one.
OTHER MEANINGS
2. A single position in a binary number, holding the value 0 or 1.
The number 101 has three binary digits.
3. The smallest unit of data in computing, commonly called a bit.
Eight binary digits make up one byte.
4. A symbol in a two-symbol system used to encode information.
The machine reads each binary digit as an on or off signal.