anticathode

 [an-tee-kath-ohd, an-tahy-]  

an·ti·cath·ode

   [an-tee-kath-ohd, an-tahy-]
noun
the positive plate of an x-ray or other electron tube serving as the target for electrons coming from the cathode, which cause it to emit high-frequency radiations.
Origin:
1905–10; anti- + cathode
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Anticathode is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
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Collins
World English Dictionary
anticathode (ˌæntɪˈkæθəʊd)
 
—n
the target electrode for the stream of electrons in a vacuum tube, esp an X-ray tube

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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