Home › Forums › setting the stage › solids as quantum systems › Definition of solid This topic has 0 replies, 1 voice, and was last updated 7 months ago by arturo. Viewing 1 post (of 1 total) Author Posts June 6, 2024 at 10:27 am #10885 arturoParticipant Matter in which atoms are at mean fixed distances when there are no external forces acting on it. 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