| 1. | a hollow part or piece for receiving and holding some part or thing. |
| 2. | Electricity.
|
| 3. | Anatomy.
|
| 4. | to place in or fit with a socket. |

socket sock·et (sŏk'ĭt)
n.
The concave part of a joint that receives the articular end of a bone.
A hollow or concavity into which a part, such as an eye fits.