Library / English Dictionary

    DOWN QUARK

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    A stable quark with an electric charge of -1/3 and a mass 607 times that of an electronplay

    Classified under:

    Nouns denoting natural objects (not man-made)

    Hypernyms ("down quark" is a kind of...):

    quark ((physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3)

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