Added 10 October 2026
lepton
/ˈlɛptɒn/ noun
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about lepton at Wordnik → Where our words come from →
- 100 lepta equal 1 drachma in Greece.
- An elementary particle that participates in weak interactions; has a baryon number of 0.
Origin
Derived from Ancient Greek λεπτόν (leptón, “small”). From Ancient Greek λεπτόν (leptón), neuter form of λεπτός (leptós, “small”).
From Wiktionary, via Kaikki.org (CC BY-SA)