/lɛpˈtɒnɪk/ LEP-tahn-ik

Definitions

1. adjective

relating to or involving leptons, especially in particle physics.

“The leptonic decay of the muon is a fundamental process in subatomic particle interactions.”

2. noun

a particle or process that involves leptons.

“The leptonic current plays a key role in the standard model of particle physics.”