tr.v., -ized, -iz·ing, -iz·es.
- To reduce to or separate into atoms.
- To reduce to tiny particles or a fine spray.
- To break into small fragments.
- To subject to bombardment with atomic weapons.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.