beam hole
noun
a hole in the shield of a nuclear reactor through which a beam of radiation, esp of neutrons, is allowed to escape for experimental purposes
Words Nearby beam hole
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
How to use beam hole in a sentence
Through the beam-hole at the stern the water began to flow into the interior of the ship.
The Onslaught from Rigel | Fletcher Pratt
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