1. characterized by sudden bursting in or breaking through
Usage: formal
2. relating to animal populations that suddenly increase and spread into new areas
Usage: ecology; biology

Examples

• The irruptive growth of the invasive species disrupted the local ecosystem.
• Snowy owls are known for their irruptive migrations during harsh winters.
• The company faced irruptive competition from new tech startups.
• Irruptive bird species can appear in large numbers unexpectedly.
• The irruptive nature of the protest caught authorities off guard.
• Scientists study irruptive population dynamics in wildlife management.