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English definition of “terminal”

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terminal

adjective uk   /ˈtɜː.mɪ.nəl/ us    /ˈtɝː-/

terminal adjective (ILLNESS)

(of a disease or illness) leading gradually to death: She has terminal cancer. A terminal patient is one who is seriously ill and will die soon.
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terminal adjective (EXTREME)

extreme, when referring to something unpleasant or negative: He has nothing to do all day and is suffering from terminal boredom. She claims that the shipbuilding industry is in terminal decline.
terminally
adverb uk   /-nə.li/ us  
a terminally ill child

terminal

noun [C] uk   /ˈtɜː.mɪ.nəl/ us    /ˈtɝː-/

terminal noun [C] (BUILDING)

B2 the area or building at a station, airport, or port that is used by passengers leaving or arriving by train, aircraft, or ship: Your flight to Perth will leave from Terminal 4.
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terminal noun [C] (COMPUTER)

a piece of equipment consisting of a keyboard and screen, used for communicating with the part of a computer system that deals with information

terminal noun [C] (ELECTRICITY)

specialized electronics the point at which a connection can be made in an electric circuit
(Definition of terminal from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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