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Adjective
- stubbornly resistant to authority or control
- a fractious animal that would not submit to the harness
- temporarily unresponsive or not fully responsive to nervous or sexual stimuli
- the refractory period of a muscle fiber
- not responding to treatment
- a refractory case of acne
Noun
- lining consisting of material with a high melting point; used to line the inside walls of a furnace