'Domino theory' definitions:
Definition of 'domino theory'
(from WordNet)
noun
The political theory that if one nation comes under communist control then neighboring nations will also come under communist control
Definition of 'Domino theory'
From: GCIDE
- Domino theory \Dom"i*no the"o*ry\ A political theory current in the 1960's, according to which the conversion of one country in South Asia to communism will start a sequential process causing all Asian countries to convert to Communism.
- Note: The apparent assumption was that an Asian country politically aligned with the West was as politically unstable as a domino standing on edge. It was used by some as a justification for American involvement in the Vietnam war, 1964-1972. [PJC]