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Lenard tube

American  

noun

Electronics.

  1. an early cathode-ray tube having at the end opposite the cathode a window of thin glass or metal allowing cathode rays Lenard rays to pass out into the atmosphere.

Etymology

Origin of Lenard tube

Named after P. Lenard

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.