noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A gas-filled shunt regulator, usually containing small quantities of radioactive materials to ease ignition, the regulated voltage depending upon the gas or gases used and their proportions and pressure.

Etymology

Blend of corona + -tron; originally a trade name.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.