A liquid is composed of atoms or molecules held together by intermolecular bonds of intermediate strength. These forces allow the particles to move around one another while remaining closely packed.
Liquid, in physics, one of the three principal states of matter, intermediate between gas and crystalline solid. The most obvious physical properties of a liquid are its retention of volume and its conformation to the shape of its container.
Unlike a solid, a liquid has no fixed shape, but instead has a characteristic readiness to flow and therefore takes on the shape of any container. Unlike a gas, a liquid usually has a volume that remains constant or changes only slightly under pressure.
liquid (comparative more liquid, superlative most liquid) (physical chemistry) Flowing freely like water; fluid; not solid and not gaseous; composed of particles that move freely among each other on the slightest pressure.