Meaning of SOCKET in English

SOCKET

/ ˈsɒkɪt; NAmE ˈsɑːkɪt/ noun

1.

(also ˈpower point ) (both BrE ) ( NAmE out·let , re·cep·tacle ) a device in a wall that you put a plug into in order to connect electrical equipment to the power supply of a building :

a wall socket

2.

a device on a piece of electrical equipment that you can fix a plug, a light bulb , etc. into :

an aerial socket on the television

3.

a curved hollow space in the surface of sth that another part fits into or moves around in :

His eyes bulged in their sockets.

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WORD ORIGIN

Middle English (in the sense head of a spear, resembling a ploughshare ): from an Anglo-Norman French diminutive of Old French soc ploughshare, probably of Celtic origin.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.