A centre, midpoint.
The part between the beginning and the end.
The middle stump.
The central part of a human body; the waist.
The middle voice.
Pertaining to the middle voice.
Located in the middle; in between.
Central.
Related to or located in the peripheral nervous system.
Unimportant.
Beside the point.
On the periphery or boundary.
Auxiliary.
Peripheral vision.
A peripheral device.