1. multiplied rapidly; bred or reproduced quickly
Usage: formal
2. swarmed or teemed abundantly
Usage: formal

Examples

• The bacteria pullulated in the warm, moist environment.
• Insects pullulated in the garden after the heavy rains.
• The city pullulated with tourists during the festival.
• Rumors pullulated throughout the small town.
• The pond pullulated with tadpoles in spring.
• Ideas pullulated in the creative workshop.