Cerenkov
adjective
Ce·ren·kov
variants:
also Cherenkov \ chər-ˈ(y)eŋ-kəf 
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Medical Definition of Cerenkov
1
: of, relating to, or being Cerenkov radiation or the process that produces such radiation
the Cerenkov effect
2
: being a device that makes use of Cerenkov radiation
a Cerenkov counter