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an•ti•mat•ter



Pronunciation: (an'tē-mat"ur, an'tī-), [key]
—n. Physics.
matter composed only of antiparticles, esp. antiprotons, antineutrons, and positrons.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

antimasqueantimension
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