critical mass
The term "critical mass" originates from nuclear physics but is now widely used in various fields to denote a necessary threshold for self-sustaining processes.
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Definition
C1Nuclear Physics
(technical)The smallest amount of fissile material needed to sustain a nuclear chain reaction.
Example
- Scientists calculated the critical mass of uranium needed for the reactor.
B2General Usage
(figurative)The minimum size or amount required to start or maintain a venture or process.
Example
- The startup reached its critical mass of users, allowing it to grow rapidly.
C1Sociology
(academic)The point at which a group or movement gains enough size and momentum to sustain itself and achieve its goals.
Example
- The social movement achieved critical mass, leading to significant policy changes.
C1Business
(technical)The minimum level of resources, customers, or market share needed for a company or product to become viable.
Example
- Reaching critical mass in the market allowed the company to become profitable.
Similar
Terms that have similar or relatively close meanings to "critical mass":