How do I define dApps?

Everyone may have different definitions of dApps. Some people may say any apps using crypto as payment are considered dApps. Others may say it has to have a smart contract logic running in the blockchain. Well, I have a different definition. I think a dApps have to

• Pure serverless. All code can be run on any qualified nodes.
• No single point failure
• Resistant to any control from anyone, including powerful central authority or even inventor himself.