Definition of "halflife" [halflife]

• Alternative spelling of half-life. (noun)

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• "A halflife is the time it takes for half a radioactive particle to decay, and it is pretty systematic."
• "GOLDBERG: Snail mail may be doomed, but it's going to have a real halflife, which is going to make mail more expensive because you're going to have smaller economies and it's going to be more difficult."
• "This time, which is generally known as the "halflife" can vary between thousands of millions of years (for uranium) down to fractions of"