Having accompaniment; being part of a group of at least two.

An accomplished fact, something that has already occurred.

A device that accelerates electrically charged particles to extremely high speeds, for the purpose of inducing high energy reactions or producing high energy radiation.

A typically alphanumeric sequence that permits access to a secure service or network.

Any nonexpendable equipment that has been fixed in place or attached to a craft, vehicle or other equipment, but which may be detached without impairing the item removed or affecting the basic function of the object to which it is fastened.

(computing) The time interval between the issuing of a request to read data from or write data to a storage device and the completion of this action.

simple past tense and past participle of accept

Generally approved, believed, or recognized.

(classical mechanics) The rate of change of angular velocity, often represented by α.

(physics) A particle accelerator that uses plasma as the medium of the accelerating field instead of a vacuum, to obtain a larger accelerating gradient.