Home › Forums › setting the stage › solids as quantum systems › definition of a solid This topic has 0 replies, 1 voice, and was last updated 1 year, 2 months ago by nkechioffiakalu. Viewing 1 post (of 1 total) Author Posts September 29, 2023 at 1:19 am #9111 nkechioffiakaluParticipant A solid is a rigid matter different from liquid and gas which is formed by ordered arrangemment of 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