Category Nuances for protein_solution:

• fluid,
• suspended,
• colloidal,
• diamagnetic,
• complex,
• simple,
• molecular,
• nonliving,
• aqueous,
• liquid,
• complicated,
• dilute,
• biological,
• inhomogeneous,

Simple Categories for protein_solution:

• fluid,
• solution,
• system,
• substance,
• matter,
• mixture,