Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
antineutrino
antineutron
antinociception
antinode
antinomian
antinomianism
antinomy
antinovel
antinuclear
antinuclear factor
antinucleon
antinuke
Antioch
antioncogene
antioxidant
antiparallel
antiparticle
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

antimatter
an·ti·mat·ter [ ánti màttər, ántī màttər ]


noun 
Definition:
 
matter composed of antiparticles: a hypothetical form of matter composed of subatomic particles antiparticles that correspond to and can annihilate other elementary particles
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
© 2009 Microsoft