Synonyms: weakly interacting massive particle, WIMP
Definition: 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
Similar words: fundamental particle, elementary particle
Definition: (physics) a particle that is less complex than an atom; regarded as constituents of all matter
Synonyms: crybaby, chicken, wimp
Definition: a person who lacks confidence, is irresolute and wishy-washy