With the understanding that the information is not to be attributed to a specific source or quoted.

present participle of background

ionizing radiation that is naturally present in the environment.

(computing, Unix) A process that is not currently able to receive input from its controlling terminal.

plural of background process

Any music played in a public space whose main function is to create an atmosphere suitable to a specific occasion, rather than to be listened to.

(computing) The execution of a subsidiary operation by a computer while the user works with another application.

plural of background radiation

A work or medium used (mostly) for the purpose of boosting the enjoyment of another medium.

A background check