1. plural of penetrator; things or people that penetrate or break through a barrier, surface, or defense
Usage: commonly used in military, scientific, and technical contexts
2. in military contexts, projectiles or weapons designed to pierce armor or fortifications
Usage: technical/military
3. in geology and drilling, tools or devices used to bore through rock or soil
Usage: technical/specialized

Examples

• The armor penetrators were designed to breach the reinforced walls.
• Deep-sea penetrators allow scientists to study extreme underwater environments.
• Modern tank rounds include kinetic penetrators made of depleted uranium.
• The drill's penetrators cut through the bedrock efficiently.
• These optical penetrators enable light transmission through dense materials.