Category Nuances for selenium:

• biological,
• raw,
• heavy,
• toxic,
• regulated,
• native,
• small,
• dietary,
• everyday,
• up,
• external,
• volatile,
• photoconductive,
• manufactured,
• supportive,
• hazardous,
• inorganic,
• red,
• mobile,
• rare,
• amorphous,
• important,
• animal,
• exogenous,
• essential,
• metabolic,
• basic,
• vital,
• beneficial,
• pure,
• key,
• covalent,
• elemental,
• powdered,
• noxious,
• photosensitive,
• traditional,
• chemical,
• single,
• abundant,
• semiconducting,
• harmful,
• effective,
• dissolved,
• powerful,
• metal,
• molecular,
• useful,
• additional,
• cellular,
• poisonous,
• solid,
• sensitive,
• supplemental,
• major,
• organic,
• synergistic,
• endogenous,
• heavier,
• nutritional,
• special,
• minute,
• soluble,
• polyvalent,
• common,
• protective,
• radioactive,
• natural,
• minor,
• smaller,
• individual,
• critical,
• healthy,
• costly,
• popular,
• active,
• fluid,
• functional,

Simple Categories for selenium:

• material,
• group,
• metal,
• food,
• volatile,
• poison,
• constituent,
• component,
• item,
• antioxidant,
• nutrient,
• element,
• substance,
• atom,
• amount,
• agent,
• solid,