Definition of special interest group noun from the Oxford Advanced Learner's Dictionary


special interest group

; NAmE
(also special interest) (especially North American English)
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a group of people who work together to achieve something that they are particularly interested in, especially by putting pressure on the government, etc. The president has pledged to stand up to powerful special interest groups such as the gun lobby and the tobacco industry.
See the Oxford Advanced American Dictionary entry: special interest group