<p><strong>Adjective</strong></p><ul><li>pertaining to or being a deductive logical system, as Boolean algebra, used to represent symbolically the relationships between sets, classes, and other entities.</li><li>Computers: of or relating to a data type having two possible values representing “true” or “false.”</li></ul><p><strong>Noun</strong></p><ul><li>Computers: a Boolean data type.</li></ul>