1. Become abundant; increase rapidly
   "Mosquitoes pullulated in the stagnant water"
    
2. Breed freely and abundantly
   "Rabbits pullulated in the absence of predators"
    
3. Be teeming, be abuzz
   "her mind pullulated with worries";
   - teem, swarm
    
4. Move in large numbers
   "beggars pullulated in the plaza";
   - pour, swarm, stream, teem
    
5. Produce buds, branches, or germinate
   "the potatoes pullulated";
   - shoot, germinate, bourgeon [archaic], burgeon forth [archaic], sprout, burgeon [archaic]

Derived forms: pullulated, pullulates, pullulating

Type of: breed, buzz, crowd, crowd together, grow, hum, increase, seethe