verb
"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-
To give an atom or group of atoms a net electric charge by adding or removing one or more electrons.
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To form ions in a substance. Lightning ionizes air, for example.
Other Word Forms
- ionizable adjective
- ionization noun
- ionizer noun
- nonionized adjective
- nonionizing adjective
- self-ionization noun
- unionized adjective
- ununionized adjective
Etymology
Origin of ionize
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“If one human absorbs a bit of ionizing radiation, then this bit of radiation is no longer available to affect another human,” he wrote in an email.
From Seattle Times
The device relies on enormous superconducting magnets to hold the ionized gas, or plasma, in a doughnut-shaped vessel while it is heated with microwaves and particle beams.
From Science Magazine
This ionized gas is the fourth state of matter, one we encounter in our daily lives a lot less than solids, liquids or more familiar gases.
From Scientific American
“Roughly half of these swift-moving meteors leave persistent trains — ionized gas trails that glow for a few seconds after the meteor has passed.”
From Seattle Times
Most publicly funded efforts have focused on tokamaks, which use powerful magnetic fields to imprison ionized gas in a doughnut-shaped vessel, where the plasma can be heated with microwaves and particle beams.
From Science Magazine
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.