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radiohalo

noun
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ra·​dio·​halo | \ ¦rādē(ˌ)ō+ \

Definition of radiohalo

: a halo usually of microscopic dimensions in a mineral or a rock produced by radioactive emanations from an included small grain of some other mineral

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History and Etymology for radiohalo

radio- + halo

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“Radiohalo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiohalo. Accessed 19 Feb. 2020.

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