1. a person or thing that penetrates or pierces something
Usage: general use
2. a projectile or weapon designed to pierce armor or barriers
Usage: military, technical
3. a device or tool used to break through or enter a surface or structure
Usage: technical, specialized

Examples

• The drill bit is an effective penetrator for hard materials.
• Military engineers tested the new armor penetrator against reinforced steel.
• The laser acts as a penetrator, cutting through the metal sheet with precision.
• Deep-sea submersibles are designed as penetrators of extreme ocean depths.
• The needle serves as a penetrator in medical procedures.