definition of a solid Home › Forums › setting the stage › solids as quantum systems › definition of a solid This topic has 0 replies, 1 voice, and was last updated 2 weeks, 3 days ago by Plume. Viewing 1 post (of 1 total) Author Posts September 28, 2026 at 1:17 pm #15104 PlumeParticipant To me, a solid is a state of matter in which matter has a definite shape. It is dense. 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