Noun wimp has 2 senses
  1. wimp, chicken, crybaby - a person who lacks confidence, is irresolute and wishy-washy
    --1 is a kind of weakling, doormat, wuss
  2. weakly interacting massive particle, WIMP - 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
    --2 is a kind of elementary particle, fundamental particle, subatomic particle
    --2 is a part of dark matter
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