| a group of people drawn or acting together in support of a common interest or to voice a common concern: Political interest groups seek to influence legislation. |
| interest group n. A group of persons working on behalf of or strongly supporting a particular cause, such as an item of legislation, an industry, or a special segment of society. in'ter·est-group' (ĭn'trĭst-group', -tər-ĭst, -trěst-) adj. |
An organized group that tries to influence the government to adopt certain policies or measures. Also called pressure group. (See lobby.)