noun, noun which may take the genitive case particle 'no'
semiliquid; semi-fluid
Technical term used in physics, chemistry, and materials science to describe substances that are neither fully solid nor fully liquid, such as gels, pastes, or thick slurries.
This substance is treated as a semiliquid.
A gel with semiliquid properties has been developed.
流体 means 'fluid' in general (liquid or gas), while 半流動体 specifically refers to a semi-fluid or semiliquid state.
固体 means 'solid', the opposite end of the spectrum from 半流動体.
液体 means 'liquid', a fully fluid state, whereas 半流動体 is only partially fluid.
Compound of 半 (half, semi-) + 流動 (flow, fluidity) + 体 (body, substance). The term is a straightforward technical coinage.