The Cherenkov effect is a phenomenon in which a charged particle emits radiation when it passes through a dielectric medium at a speed greater than the phase velocity of light in that medium.

Cherenkov radiation is a type of electromagnetic radiation emitted when a charged particle passes through a dielectric medium at a speed greater than the phase velocity of light in that medium.

The cheremic language has unique phonological features.

The chereme is the smallest unit of a sign language.

The cheremes in sign language are used to convey meaning.

The cheremnykhite is a rare gemstone found only in a few locations around the world.

Cherepanovite is a rare mineral found in certain geological formations.

The cherems were displayed prominently in the museum.

The community imposed a cherem on the individual for his actions.

The Cherenkov effects observed in the experiment were truly remarkable.