Meaning Of The Word Critical mass

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Critical mass Meaning

Critical mass Definition
Critical mass Definition

What's The Definition Of Critical mass?

critical mass
singular noun: In physics, the critical mass of a substance is the minimum amount of it that is needed for a nuclear chain reaction.

critical mass in American English
the minimum amount of fissile material that can sustain a nuclear chain reaction under a given set of conditions
noun: the amount of a given fissionable material necessary to sustain a chain reaction at a constant rate

critical mass in British English
noun: the minimum mass of fissionable material that can sustain a nuclear chain reaction

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