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Boolean
adjective
°Of or pertaining to the work of George Boole.
°(logic computing) Pertaining to data items that can have “true” and “false” (or, equivalently, 1 and 0 respectively) as their only possible values and to operations on such values.
noun
°(logic computing) A variable that can hold a single true/false (1/0) value.
synonyms: flag