Dictionary.com
Thesaurus.com

glow discharge

American  

noun

Physics.
  1. the conduction of electricity in a low-pressure gas, producing a diffuse glow.


glow discharge British  

noun

  1. a silent luminous discharge of electricity through a low-pressure gas

"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

Etymology

Origin of glow discharge

First recorded in 1835–45