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Refractory (disambiguation)
Civil Constitution of the Clergy
Postictal state
Psychological refractory period
Refraction (metallurgy)
Refractory (astronomy)
Refractory (mineral processing)
Refractory ceramic
Refractory disease
Refractory metals
Refractory period (disambiguation)
Refractory period (physiology)
Refractory period (sex)
refractory