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 years, 1 month ago by jy12amu. Viewing 1 post (of 1 total) Author Posts October 20, 2022 at 12:05 am #7334 jy12amuParticipant A definition mass of matter having fixed shape and size resistant to change under pressure (not fluid). 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