Simple categories matching reversible:

• cause,
• process,
• condition,
• disorder,
• infection,
• thermostat,
• reaction,
• disease,
• disturbance,
• pathology,
• structure,
• figure,
• illness,
• inhibitor,

Members with property reversible:

• inadequate_nutrition,
• drug_intoxication,
• depression,
• infection,
• urinary_tract,
• metabolic_abnormality,
• use,
• medication,
• pregnancy,
• hydration,
• alcohol_withdrawal,
• prescribed_medication,
• acute_hydrocephalus,
• hypothermia,
• medical_problem,
• pneumonia,
• shock,
• endocrine_disorder,
• visual_fatigue,
• surgery,
• sedative,
• anaemia,
• obstruction,
• toxin,
• diabetes,
• strict_dieting,
• drug_action,
• hypothyroidism,
• vitamin_deficiency,
• opportunistic_infection,
• stupor,
• ear_wax,
• pulmonary_hypertensive,
• major_depression,
• cataract,
• emotional_stress,
• severe_cold,
• barbiturate_ingestion,
• renal_failure,
• hypertension,
• psychosis,
• metabolic_disturbance,
• sedation,
• wooden_platform,
• hyperthyroidism,
• gaussian_thermostat,
• neutropenia,
• rapid_withdrawal,
• medication_side,
• acute_bronchitis,
• arrhythmia,
• mechanical_obstruction,
• vitamin-b12_deficiency,
• weight_disorder,
• thyroid_disease,
• transient_confusion,
• fecal_impaction,
• haemorrhage,
• sulindac,
• vitamin-e_deficiency,
• stress,
• tension_pneumothorax,
• asthma,
• particular_drug,
• electrolyte_disturbance,
• varicocele,
• subdural_hematoma,
• thyroid_disorder,
• drug,
• abstract_design,
• septicaemia,
• anticonvulsant,
• anemia,
• agitation,
• electrolyte,
• metabolic_encephalopathy,
• neoplasm,
• thyroid_problem,
• dehydration,
• timber,
• sepsis,
• trauma,
• iron,
• necker_cube,
• hypovolaemic_shock,
• gallamine,
• malnutrition,
• electrolyte_imbalance,
• alcoholism,
• malabsorption,
• iron_deficiency,
• procaine,
• reactive_depression,
• tumor,
• severe_ascites,
• mental_distress,
• orthostatic_hypotension,
• vitamin,
• financial_problem,
• hypovolemia,
• adverse_reaction,
• chemical_imbalance,
• delirium,
• pain,
• drug_sedation,
• acute_asthma,
• cardiac_tamponade,
• nasal_obstruction,
• ibuprofen,
• head_injury,
• medication_change,