Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: critical mass  kri-ti-kul mas
  1. The minimum amount (of something) required to start or maintain a venture
    "the battle for the computer market has now reached critical mass"; "there is now a critical mass of successful women to take the lead"; "they sold the business because it lacked critical mass"
  2. The minimum mass of fissionable material that can sustain a chain reaction

Derived forms: critical masses

Type of: amount, mass

Encyclopedia: Critical mass