protection against radioactive irradiation

  • 51dormancy — /dawr meuhn see/, n. the state of being dormant. [1780 90; DORM(ANT) + ANCY] * * * ▪ biology Introduction       state of reduced metabolic activity adopted by many organisms under conditions of environmental stress or, often, as in winter, when… …

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  • 52Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …

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