- examining, investigating, or exploring something in a deep or searching way: There was scarcely any discussion of the proposal—no probing questions, and no legal or ethical issues raised.
- the act or practice of examining, investigating, or exploring something in a deep or searching way: Constant probing of the night sky by scientists reveals an abundance of activity within our solar system.
- the act of examining or exploring something by means of a probe or any of various instruments, devices, etc.: Probing of the blocked duct was done under anesthesia.
- the process of scanning a network, database, webpage, web app, etc., in order to obtain information about its structure and any security weaknesses that could be used to launch an attack: undertaken either maliciously by hostile parties, or diagnostically and preventively by those wishing to improve security.
