beta particle

noun

Definition of beta particle

: a high-speed electron specifically : one emitted by a radioactive nucleus in beta decay

Examples of beta particle in a Sentence

Recent Examples on the Web The scientific reality is tritium emits an incredibly weak beta particle that is easily stopped by our dead skin layer. James Conca, Forbes, 12 Apr. 2021 The fourth decay can occur by two different routes, with each path releasing one alpha particle and one beta particle before reaching lead-209. Jacqueline Detwiler, Popular Mechanics, 1 Feb. 2020 Of course the frisker was measuring gamma waves in addition to alpha and beta particles; all these people presumably cared about was the particles, which could continue to do harm after being removed from the zone. Aaron Gilbreath, Longreads, 10 Apr. 2018 Radionuclides: Water systems monitor for beta particles and photon radioactivity in drinking water. Nathaniel Levine, sacbee, 22 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'beta particle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of beta particle

1904, in the meaning defined above

Learn More About beta particle

Time Traveler for beta particle

Time Traveler

The first known use of beta particle was in 1904

See more words from the same year

Dictionary Entries Near beta particle

beta oxy naphthoic acid

beta particle

Beta Pegasi

See More Nearby Entries 

Statistics for beta particle

Cite this Entry

“Beta particle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/beta%20particle. Accessed 8 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for beta particle

beta particle

noun

Medical Definition of beta particle

: a high-speed electron specifically : one emitted during radioactive decay of an atomic nucleus

More from Merriam-Webster on beta particle

Britannica.com: Encyclopedia article about beta particle

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!