radiobiology

1 of 2

noun

ra·​dio·​bi·​ol·​o·​gy ˌrā-dē-ō-bī-ˈä-lə-jē How to pronounce radiobiology (audio)
: a branch of biology dealing with the effects of radiation or radioactive materials on biological systems
radiobiological adjective
or less commonly radiobiologic
radiobiologist noun

radiobiological

2 of 2

adjective

ra·​dio·​bi·​o·​log·​i·​cal ¦rā-dē-ō-ˌbī-ə-¦lä-ji-kəl How to pronounce radiobiological (audio)
variants or radiobiologic
: relating to, produced by, or employing radiobiology

Word History

Etymology

Adjective

radiobiology + -ical or -ic

First Known Use

Noun

1919, in the meaning defined above

Time Traveler
The first known use of radiobiology was in 1919

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Cite this Entry

“Radiobiology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiobiology. Accessed 14 Jun. 2026.

Medical Definition

radiobiology

noun
ra·​dio·​bi·​ol·​o·​gy ˌrād-ē-ō-bī-ˈäl-ə-jē How to pronounce radiobiology (audio)
plural radiobiologies
: a branch of biology dealing with the effects of radiation or radioactive materials on biological systems
radiobiological adjective
also radiobiologic
radiobiologically adverb

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