👉 Semiviscid refers to a liquid or fluid material that is not completely incompressible. This means that there are some portions of the material that may exhibit a certain amount of internal pressure, but this pressure is usually negligible compared to the total volume of the material. For example, if you had a liquid that was 50% denser than water at 20°C, it would not be completely incompressible. However, due to the presence of some fluidic properties (
