supersolid
A quantum state of matter that combines properties of a solid and a superfluid; a technical term in low-temperature physics.
超固体は、固体でありながら超流動性を示すと考えられている。
A supersolid is thought to exhibit superfluidity while being a solid.
Compound of 超 (super-) and 固体 (solid), calque of English 'supersolid'.