Antiproton
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The [antimatter] equivalent of a [proton]. It has the same mass as a proton, but opposite [charge] (negative).
Antiproton meaning & definition 1 of Antiproton.
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The negatively charged antiparticle of a proton.
Antiproton meaning & definition 2 of Antiproton.
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the antiparticle of a proton
Antiproton meaning & definition 3 of Antiproton.