Natural gas processing means the separation of non-methane gases from raw natural gas, or the separation of the non-methane gases and liquids into one or more components.

FORBES: Just Tell the "Fracking" Truth

The separation of powers means that no one player holds all the cards.

BBC: A system designed to be this way

In a nutshell, Separation of Duties simply means that security requires that we split responsibilities for different facets of a task across multiple individuals.

FORBES: Teach Your Boss To Speak Security: "Separation Of Duties"

The principle of separation between church and state in America means that religious groups are not required to file tax returns, list their assets or disclose basic facts about their finances.

ECONOMIST: The Catholic church in America

This separation of church and state is really important because it means that when you open your notebook, your focus is undiluted by reminders to do this or that later on.

FORBES: The Author's Notebook

The result is, in effect, a liquid sponge, and means the mixture can be stored indefinitely, like ordinary diesel, without risk of separation.

ECONOMIST: To make engines cleaner, add H2O