socket Meaning, Definition & Usage

  1. noun a bony hollow into which a structure fits
  2. noun receptacle where something (a pipe or probe or end of a bone) is inserted
  3. noun a receptacle into which an electric device can be inserted

WordNet

Sock"et noun
Etymology
OE. soket, a dim. through OF. fr. L. soccus. See Sock a covering for the foot.
Definitions
  1. An opening into which anything is fitted; any hollow thing or place which receives and holds something else; as, the sockets of the teeth.
    His eyeballs in their hollow sockets sink. Dryden.
  2. Especially, the hollow tube or place in which a candle is fixed in the candlestick.
    And in the sockets oily bubbles dance. Dryden.

Webster 1913