An allusion to a row of dominoes in which the fall of one leads to a cascade of falling pieces
- (figuratively) The situation in which one event sets off a chain of additional events.
- (politics, historical) The theory that, if South Vietnam fell to Communism, it would be followed by Cambodia, Laos, and additional South Asian countries.
- (theory of encroaching communism): domino theory
chain of events
theory of encroaching communism