Becquerel ray
noun
Bec·que·rel ray
(ˌ)bek-ˌrel-, ˌbek-ə- 
: a ray emitted by a radioactive substance
—used before radioactive emissions were classified as alpha and beta particles and gamma-ray photons
Cite this Entry
“Becquerel ray.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Becquerel%20ray. Accessed 1 Dec. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share