socket

socket /ˈsɑːkət/ noun
plural sockets
socket
/ˈsɑːkət/
noun
plural sockets
Britannica Dictionary definition of SOCKET
[count]
1 
a  : a device in a wall into which an electric cord can be plugged : outlet
b  : an opening on a piece of electrical equipment into which a plug, light bulb, etc., fits
2 
: a hollow part in a bone that holds an eye, a tooth, or another bone