Standard Lemma guide

RBMK

noun · 1 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.

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1

noun

Meaning 1

A kind of graphite-moderated nuclear reactor, designed so that, instead of a large steel pressure vessel surrounding the entire core, the core is surrounded by a cylindrical annular steel tank inside a concrete vault and each fuel assembly is enclosed in an individual pipe or channel that also contains the coolant.

Definition source: English Wiktionary via Wiktextract

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Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Initialism from the Russian name: "реа́ктор большо́й мо́щности кана́льный" (reaktor bolshoy moshchnosti kanalnyy), meaning "high-power channel-type reactor".