Definition of cryosar in US English:

cryosar

noun

Electronics
historical
  • A high-speed switching device whose operation is based on the impact ionization of impurities in a semiconductor wafer at the temperature of liquid helium.

Origin

1950s. From cryo- + the initial letters of switching by avalanche and recombination.

Pronunciation

cryosar

/ˈkrʌɪə(ʊ)sɑː/