A defined interface for software to communicate and exchange data

• A contract for accessing an application's functions or services

The biologically active substance in a medicine

• The component producing the intended therapeutic effect

A demographic label for people of Asian and Pacific Island descent

• Commonly used in U.S. policy, research, and community contexts

Ammunition that penetrates armor and ignites on impact

• Combines armor-piercing and incendiary effects in one round

Blowback system igniting the primer before full chambering

• Uses cartridge momentum during ignition to reduce recoil