[{"Bold_text": "noun", "List Items": ["Mathematics.a number or quantity placed (generally) before and multiplying another quantity, as3in the expression3x.", "Physics.a number that is constant for a given substance, body, or process under certain specified conditions, serving as a measure of one of its properties:coefficient of friction."]}, {"Bold_text": "adjective", "List Items": ["acting in consort; cooperating."]}]