Refractory (disambiguation)

A refractory is a heat-resistant material, such as:


 * Refractory ceramic, a ceramic that is resistant to heat
 * Refractory metals, metals that are resistant to heat and wear

Refractory may also refer to:


 * Refractory (astronomy), any material, which condenses at high temperature
 * Refractory clergymen: Roman Catholic priests and bishops in France who refused to swear an oath of allegiance to the state during the Civil Constitution of the Clergy
 * Refractory disease, one not responsive to common modes of treatment
 * Refractory (mineral processing), metallic minerals that are difficult to liberate in traditional processes (e.g. refractory gold ores).
 * Refractory period (disambiguation), a period immediately following a stimulus during which further stimulation has no effect
 * Refractory period (physiology), the time after an action potential during which a membrane can not depolarize
 * Refractory period (sex), a period after orgasm during which it is impossible to achieve another orgasm
 * Psychological refractory period, the delay in response to the second of two closely spaced psychological stimuli
 * Postictal state, the period following a series of epileptic seizures during which seizures cannot be induced