from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An electron tube used to amplify or generate ultrahigh frequency by means of velocity modulation.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an electron tube used to amplify microwave-frequency electromagnetic radiation.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation
Greek kluzein, klus-, to wash, break over + -tron.(American Heritage® Dictionary of the English Language, Fourth Edition)