hot cathode
Fetched 2026-10-26 (cache).
Synonyms: photocathode
Antonyms: photocathode
Related words from Datamuse; suggestions, not definitions.
Noun
- The [[heated]] [[cathode]] of a [[thermionic valve]].
Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.