Phrase guide

control rod

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

Any of a number of steel tubes, containing boron or other neutron absorber, that are inserted into the core of a nuclear reactor in order to control its rate of reaction.

Definition source: English Wiktionary via Wiktextract

Examples

  • Holonym: nuclear reactor
  • A faulty control rod design was a key factor in causing the 1986 steam explosion of a reactor at Chernobyl.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a steel or aluminum rod that can be moved up or down to control the rate of the nuclear reaction

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: rod

History

Etymology

No etymology was provided for this word.

Across languages

Translations

10 source translations are retained for this English entry.

  • Catalan: barra de control — Translations
  • Dutch: regelstaaf — Translations
  • Finnish: säätösauva — Translations
  • French: barre de commande — Translations
  • German: Steuerstab — Translations
  • German: Kontrollstab — Translations
  • German: Regelstab — Translations
  • Japanese: 制御棒 (seigyo bō) — Translations
  • Korean: 제어봉 (jeeobong) — Translations
  • Tagalog: tandos-panupil — Translations