Definition of Critical mass

1. Noun. The minimum amount (of something) required to start or maintain a venture. "They sold the business because it lacked critical mass"

Generic synonyms: Amount

2. Noun. The minimum mass of fissionable material that can sustain a chain reaction.
Generic synonyms: Mass

Medical Definition of Critical mass

1. The minimum amount of mass of a combination of radioactive substances needed for the substances to generate and lose an exactly balanced number of neutrons to make a chain reaction which will keep going by itself. (09 Oct 1997)

Lexicographical Neighbors of Critical Mass

criticalnesses
critical analysis
critical angle
critical angle
critical appraisal
critical care
critical care unit
critical concentration
critical dissolved oxygen concentration
critical flicker fusion frequency
critical gradient
critical habitat
critical illness
critical illness polyneuropathy
critical mass (current term)
critical mass (current term)
critical micelle concentration
critical organ
critical pathway
critical period
critical pH
critical point
critical point
critical point drying
critical pressure
critical rate
critical review
critical temperature
critical velocity
criticaster

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