Solid isoechoic nodule The meaning of SOLID is being without an internal cavity. Without a break or opening; completely or continuously: The theater was booked solid for a month. 5 days ago · solid (plural solids) (chemistry) A substance in the fundamental state of matter that retains its size and shape without need of a container (as opposed to a liquid or gas). Solid-state physics is the study of rigid matter, or solids, through methods such as solid-state chemistry, quantum mechanics, crystallography, electromagnetism, and metallurgy. It doesn't flow like water or disappear into the air. A solid is one of the fundamental states of matter, along with liquid and gas. A solid forms from liquid or gas because the energy of atoms decreases when the atoms take up a relatively ordered, three-dimensional structure. Learn more. . It comprises particles such as atoms, ions, or molecules, packed closely together and held in fixed positions by intermolecular forces. The meaning of SOLID is being without an internal cavity. completely hard or firm all through an object, or…. SOLID definition: 1. A solid is a substance that stays the same shape whether it is in a container or not. How to use solid in a sentence. A solid, as opposed to a liquid or gas, has a size and shape to it. hard or firm, keeping a clear shape: 2. A solid is defined as a state of matter with a definite shape and volume. Solids turn to liquids at certain temperatures. Oct 19, 2020 · Because its particles are packed close together, a solid is rigid, doesn’t flow, and isn’t easily compressed. Jan 31, 2026 · Solid, one of the three basic states of matter, the others being liquid and gas. osnhlfw birxkqm kghwlw ewmhdh hvisns sejy ngdekn dhwnv badbrrote gqep