1. a very small political group, especially one that has broken away from a larger organization
Usage: political science; often derogatory

Examples

• The radical groupuscule had only twelve members but generated significant controversy.
• Several groupuscules emerged after the party’s ideological split.
• The professor studied various leftist groupuscules of the 1960s.
• Media attention gave the small groupuscule influence beyond its size.
• The groupuscule published a weekly newsletter criticizing government policy.
• Political groupuscules often struggle to gain mainstream acceptance.