-tron

suff.

1. Vacuum tube: dynatron.

2. Device for manipulating subatomic particles: betatron.

[Greek, instrumental n. suff.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

-tron

suffix forming nouns

1. (Electronics) indicating a vacuum tube: magnetron.

2. (Atomic Physics) indicating an instrument for accelerating atomic or subatomic particles: synchrotron.

[from Greek, suffix indicating instrument]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

-tron

a combining form extracted from electron, used in the names of electron tubes (magnetron) and of devices for accelerating subatomic particles (cyclotron).

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