binaryrule
nounUK /ˈbaɪ.nə.ri ruːl/
US /ˈbaɪ.nɛr.i ruːl/
A binary rule is a rule that has only two choices, like yes or no.
The game had a binary rule: you can either play or sit out.
OTHER MEANINGS
2. A computing rule that uses only 0 and 1.
The program follows a binary rule to turn the light on or off.
3. A strict rule with no middle ground.
Her binary rule meant snacks were either allowed or forbidden, never sometimes.
4. A rule in math that works with two values.
The binary rule adds two numbers and gives one result.