Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A single-anode, mercury-vapor rectifier in which current passes as an arc between the anode and a mercury-pool cathode, used in power rectification.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A form of rectifier having a pool of mercury as cathode

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[igni(te) + –tron.]

Examples

  • Brad Warbiany: According to the email: "10KV, 30KJ cap bank, mercury ignitron switch.

    The Liberty Papers

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