protocol
used in Hunger Games Book #2 (Catching Fire)

The exact meaning of porous can depend upon its context. For example:

• "diplomatic protocol" — standard procedures followed by diplomats
• "The Kyoto protocol to reduce greenhouse gases" — a formal written agreement between countries
• "computer communications protocol" — technical specifications that describe rules that enable computers to communicate
• "research protocol" — rules or procedures followed during a research project such as a medical trial
• "concussion protocol" — rules or procedures followed after an athlete has a concussion
• "business protocol" — standard etiquette or conventions practiced in business