Category Nuances for fibrous_material:

• dry,
• foreign,
• physical,
• solid,
• amorphous,
• frangible,
• porous,
• fine,
• tiny,
• thin,
• compressible,
• elastic,
• heterogeneous,
• ceramic,
• hygroscopic,
• inorganic,

Simple Categories for fibrous_material:

• contaminant,
• solid,
• material,
• mineral,
• substrate,
• component,
• article,
• substance,
• structure,
• matter,