anti helium

American Heritage
Science Dictionary
antihelium   (ān'tē-hē'lē-əm, ān'tī-)  Pronunciation Key 
The antimatter that corresponds to helium.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature