obex

OBEX (abbreviation of OBject EXchange, also termed IrOBEX) is a communications protocol that facilitates the exchange of binary objects between devices. It is maintained by the Infrared Data Association but has also been adopted by the Bluetooth Special Interest Group and the SyncML wing of the Open Mobile Alliance (OMA). One of OBEX's earliest popular applications was in the Palm III personal digital assistant. This PDA and its many successors use OBEX to exchange business cards, data, even applications.
See more at Wikipedia.org...

The obex (from the Latin for barrier) is the point in the human brain at which the fourth ventricle narrows to become the central canal of the spinal cord. The obex occurs in the caudal medulla.The decussating of sensory fibers happens at this point.
See more at Wikipedia.org...

Obex the ependyma-lined junction of the taeniae of the fourth ventricle of the brain at the inferior angle. o·bex n. [more]Obex - Community and Resources

Object Exchange

N C
bolt| bar; barrier; obstacle

OBJECT EXCHANGE [BORLAND]. OBEX