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up quark

n.
1.a stable quark with an electric charge of +2/3 and a mass 607 times that of an electron

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Word of the Day

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  • up on
  • up in the air
  • up here
  • up and down
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  • unzip
  • unyoke
  • unyieldingness
  • unyielding
  • unwritten law
  • up the stairs
  • up to
  • up to her neck
  • up to his neck
  • up to my neck
  • up to now
  • up to our necks
  • up to their necks
  • up to your neck
  • up-and-coming
  • white pine blister rust
  • levity
  • poker game
  • hunker down
  • window seat
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  • flory

  • Idiom of the Day

    change hands
    to be transferred from one person to another
    The pizza restaurant changed hands many times during the last several years.



    1.
    This kind of behaviour (a) / has not been seen here (b) / since the last four years. (c) /No error (d)

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