dewar

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De·war

(dū'wăr),
James, English chemist, 1842-1923. See: Dewar flask.

dewar

[dyo̅o̅′ər]
a double chamber used to maintain the temperature of superconducting magnet coils near absolute zero. The outer chamber is filled with liquid nitrogen at a temperature of about -196° C (-321° F), and the inner chamber is filled with liquid helium at a temperature of -270° C (-454° F). A dewar is part of magnetic resonance imaging equipment.
References in periodicals archive ?
He said Dewar would now take his place in history as "one of the few men across the centuries of whom it could be said that he founded a new Parliament".
To some smiles from the congregation, he remembered how Dewar would emerge from battered old cars - his towering frame a size and shape, he joked, Marks and Spencer hadn't thought of.
Tony Blair laughed as Wishart recalled how she had once spotted Dewar, remembered for his dishevelled appearance, sporting a trendy new tie.
You can open the drawers of the desks and cupboards in the office and look at old order books and job contracts as well as some of the Royal Warrants Dewar has received.
Paraig said: "Writing the lament was very personal to me, but all of Scotland mourned for Donald Dewar.
Bacardi Limited acquired John Dewar & Sons Limited and the Dewar's brand in 1998.
John Dewar & Sons Limited currently employs 300 people at seven locations throughout Scotland.