The gamma ray was measured at 511 KeV, confirming positron annihilation.

They called him 'Kev' behind his back, using it as a slur for a working-class bloke.

Kev promised to pick up the cake on his way to the party.

The detector measured a sharp peak at 511 keV during the experiment.

The Kevs arrived early to set up the stage.

The researchers detected peaks at 120 keVs that indicated an unexpected decay process.

In the simulation, each kevent denotes a specific point in space-time.

The ancient instrument required three kevels to produce its unique resonance.

At dawn, a solitary kevel leaped across the savanna.

The captain ordered the crew to pass the heavy mooring line around the kevel and secure it tightly.