Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy, physics A hypothetical class of
particle , proposed to explain thedark matter problem.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe
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