English Explanatory Dictionary

critical mass

English dictionary entry

Meanings

noun
  1. The minimum amount of fissile material needed to support a self-sustaining nuclear chain reaction.
  2. The minimum amount of something or the minimum number of people needed to trigger a phenomenon.
name
  1. A direct action event in which bicycle riders travel through city streets as a group.

Pronunciation

LL-Q1860 (eng)-Vealhurl-critical mass.wav

Word forms

critical mass critical masses

Related words

subcritical mass supercritical mass tipping point
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