• synonyms


[ an-tee-hee-lee-uh m, an-tahy- ]
/ ˌæn tiˈhi li əm, ˌæn taɪ- /

noun Physics.

the antimatter counterpart to helium.

Nearby words

antigravity, antigua, antigua and barbuda, antiguan, antihalation, antihelium, antihelix, antihemagglutinin, antihemolysin, antihemolytic, antihemophilic factor Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for antihelium


[ ăn′tē-hēlē-əm, ăn′tī- ]

The antimatter that corresponds to helium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.