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betalight. In DICTIOUS you will not only get to know all the dictionary meanings for the word
betalight, but we will also tell you about its etymology, its characteristics and you will know how to say
betalight in singular and plural. Everything you need to know about the word
betalight you have here. The definition of the word
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English
Etymology
From beta + light.
Noun
betalight (plural betalights)
- A sealed capsule, internally coated with a phosphor and filled with a tritium whose beta decay causes the phosphor to glow.