n.

a bony hollow into which a structure fits

receptacle where something (a pipe or probe or end of a bone) is inserted

a receptacle into which an electric device can be inserted

Sockets for electronic components and methods of connecting to electronic components
Healing of human extraction sockets filled with Bio‐Oss®;
UNIX Network Programming: Networking APIs: Sockets and XTI
Preservation of alveolar bone in extraction sockets using bioabsorbable membranes.
The End-to-End Performance Effects of Parallel TCP Sockets on a Lossy Wide-Area Network
Immediate implantation in fresh extraction sockets. A controlled clinical and histological study in man.
Porous bovine bone mineral in healing of human extraction sockets: 2. Histochemical observations at 9 months.
Ridge alterations following implant placement in fresh extraction sockets: an experimental study in the dog
Porous Bovine Bone Mineral in Healing of Human Extraction Sockets. Part 1: Histomorphometric Evaluations at 9 Months
Consensus statements and recommended clinical procedures regarding the placement of implants in extraction sockets