[{"Bold_text": "adjective", "List Items": ["representable by position on a scale line; having only magnitude:a scalar variable.", "of, relating to, or utilizing a scalar.", "ladderlike in arrangement or ; graduated:a scalar structure for promoting personnel."]}, {"Bold_text": "noun", "List Items": ["Mathematics, Physics.a quantity possessing only magnitude.Compare vector(def1a) vector(def1a)."]}]