Definition of Solid Home › Forums › setting the stage › solids as quantum systems › Definition of Solid This topic has 0 replies, 1 voice, and was last updated 1 day, 3 hours ago by Swarnojit. Viewing 1 post (of 1 total) Author Posts August 3, 2026 at 4:25 am #14760 SwarnojitParticipant A state of matter in which atoms and molecules have restricted translational degrees of freedom (confined primarily to vibrational motion), resulting in a material with a definite shape and fixed volume. 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