 [rĭ-frăḱtə-rē]
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Refractory - Wikipedia, the free encyclopedia
A refractory material is one that retains its strength at high temperatures. ASTM C71 defines refractories as "non-metallic materials having those chemical and physical properties that made them app...
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Refractory period - Wikipedia, the free encyclopedia
• Refractory period (physiology), the amount of time it takes for an excitable membrane to be ready for a second stimulus once it returns to its resting state following excitation in the areas of biol...
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Promoting the interests of the refractories community, providing service and support to a vital industry.
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3. medicine not responsive to treatment: unresponsive to medical treatment a refractory infection; ... 5. physiology unresponsive to stimulus: not able to respond to a stimulus a refractory nerve;
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Definition of refractory in the Medical Dictionary. refractory explanation. Information about refractory in Free online English dictionary. What is refractory? Meaning of refractory medical term. What does refractory mean? ... refractory period...
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, symbol Mo, metallic element with chemical properties similar to those of chromium. Molybdenum is one of the transition elements of the periodic table. The atomic number of molybdenum is 42. ... Molybdenum was discovered in 1778 by the Swedish chemist Carl Wilhelm Scheele. ... Molybdenum does not occur free in nature,
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