thermionic emission


noun
  1. the emission of electrons from very hot solids or liquids: used for producing electrons in valves, electron microscopes, X-ray tubes, etc

Words Nearby thermionic emission

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012