noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A stream of beta particles (fast-moving electrons propagating through a gas or vacuum), such as emitted by a radioactive substance.
2. 2
   radiation of beta particles during radioactive decay wordnet

Synonyms

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actinic rayalpha radiationalpha rayanode raybecquerel raybeta radiation

Antonyms

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light