Home › Forums › setting the stage › solids as quantum systems › Definition of solid This topic has 0 replies, 1 voice, and was last updated 1 year, 7 months ago by Yamini Bhalla. Viewing 1 post (of 1 total) Author Posts April 22, 2023 at 3:56 pm #8493 Yamini BhallaParticipant Solid is a state of matter where all atoms/molecules are packed together tightly, in a rigid manner. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In