The antimatter counterpart of a lepton, a fundamental subatomic particle with opposite electrical charge.
From anti- + lepton (from Greek leptos, small, thin). In physics, antimatter particles are named with the anti- prefix.
Antileptons sound like science fiction, but they're real—when an electron meets its antimatter twin, a positron, they annihilate and release pure energy. This is literally how the universe destroys matter.
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