Phrase guide

beta ray

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

A stream of beta particles (fast-moving electrons propagating through a gas or vacuum), such as emitted by a radioactive substance.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

radiation of beta particles during radioactive decay

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: beta radiation, electron radiation

Antonyms: none provided

Broader terms: ionizing radiation, corpuscular radiation, particulate radiation

History

Etymology

No etymology was provided for this word.

Across languages

Translations

5 source translations are retained for this English entry.

  • Chinese Mandarin: β射線 /β射线 (bèitǎ shèxiàn) — stream of beta particles
  • Dutch: bètastraal — stream of beta particles
  • Finnish: beetasäde — stream of beta particles
  • French: rayon bêta — stream of beta particles
  • Polish: strumień cząstek beta — stream of beta particles