Home › Forums › setting the stage › solids as quantum systems › Definition of a solid This topic has 0 replies, 1 voice, and was last updated 4 months, 3 weeks ago by Fayez. Viewing 1 post (of 1 total) Author Posts July 23, 2024 at 10:11 pm #11022 FayezParticipant A solid describes any material/compound of a rigid nature, with closely-packed constituent atoms. 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