solid state

the state in which a substance has no tendency to flow under moderate stress; resists forces (such as compression) that tend to deform it; and retains a definite size and shape

物質が適度な応力下で流動する傾向を持たず、変形させようとする力（圧縮など）に抵抗し、明確な大きさと形状を維持する状態